ciao a tutti

ho realizzato un motore di ricerca che miracolosamente funziona ora ho aggiunto la ricerca per data, ma questo filtro non riesco a farlo funzionare, dove sbaglio?

Codice PHP:
<?
if ($search==1){
$dal_giorno=$aa1."-".$mm1."-".$gg1;
$al_giorno=$aa2."-".$mm2."-".$gg2;
if (
$data_evento){
        
$search_data_evento="AND c_agenda.data_evento between '$dal_giorno' AND '$al_giorno'"
    }
if (
$id_operatori){
        
$search_operatori="AND c_agenda.id_operatori like \"".$id_operatori."\"";
    }
if (
$id_admin){
        
$search_admin="AND c_agenda.id_admin like \"".$id_admin."\"";
    }
if (
$id_tecniche){
        
$search_tecniche="AND c_agenda.id_tecniche like \"".$id_tecniche."\"";
    }
if (
$id_admin_ins_dati_evento){
        
$search_admin_ins="AND c_agenda.id_admin_ins_dati_evento like \"".$id_admin_ins_dati_evento."\"";
    }
    
$query="SELECT c_agenda.*, a_admin.*, a_tecniche.*, b_operatori.*, DATE_FORMAT(c_agenda.data_evento, '%d-%m-%Y')AS data_evento, DATE_FORMAT(c_agenda.data_ins_dati_evento, '%d-%m-%Y')AS data_ins_dati_evento
            FROM c_agenda, a_admin, a_tecniche, b_operatori
            WHERE c_agenda.id_operatori = b_operatori.id_operatori AND c_agenda.id_admin = a_admin.id_admin AND c_agenda.id_tecniche = a_tecniche.id_tecniche AND (c_agenda.id_eventi>0 "
.$search_operatori.$search_admin.$search_tecniche.$search_admin_ins.$search_titolo_evento.$search_data_evento.") AND c_agenda.titolo_evento like '%$chiave%' ORDER BY c_agenda.data_evento DESC, c_agenda.data_ins_dati_evento DESC";
    
$ris_query=mysql_query($query$conn);
}
?>

Codice PHP:
        <tr>
    <td height="1" colspan="5" valign="top" bgcolor="BE743F"></td>
    </tr>
          <tr>
    <td width="90" height="41"><span class="testo_grigio_bold">dal giorno </span></td>
    <td align="right">
<select name="gg1"><?
                                        $data
=date("Y-m-d");
                                        
$anno_att=substr($data,0,4);
                                        
$mese_att=substr($data,5,2);
                                        
$giorno_att=substr($data,8,2);
                                        
$anno_sel=substr($row['dal_giorno'],0,4);
                                        
$mese_sel=substr($row['dal_giorno'],5,2);
                                        
$giorno_sel=substr($row['dal_giorno'],8,2);
                                        
$anno_par=$anno_att-50;?>
                                        <option value="00">00</option>
                                        <?
                                        
for ($n=1;$n<=31;$n=$n+1){
                                            
$n=sprintf("%02d",$n);?>
                                               <option value=<?=$n?>><?=$n?></option><?
                                        
}?></select>
                                        <select name="mm1">
                                        <option value="00">00</option>
                                        <option value="01">01</option>
                                        <option value="02">02</option>
                                        <option value="03">03</option>
                                        <option value="04">04</option>
                                        <option value="05">05</option>
                                        <option value="06">06</option>
                                        <option value="07">07</option>
                                        <option value="08">08</option>
                                        <option value="09">09</option>
                                        <option value="10">10</option>
                                        <option value="11">11</option>
                                        <option value="12">12</option>
                                        </select>
                                        <select name="aa1">
                                        <option value="0000">0000</option>
                                        <?
                                        
for ($n=2007;$n<=2007;$n=$n+1){?>
                                            <option value=<?=$n?>><?=$n?></option><?
                                        
}?></select>
    </td>
    <td></td>
    <td align="left"><span class="testo_grigio_bold">al giorno </span></td>
    <td align="right">
<select name="gg2"><?
                                        $data
=date("Y-m-d");
                                        
$anno_att=substr($data,0,4);
                                        
$mese_att=substr($data,5,2);
                                        
$giorno_att=substr($data,8,2);
                                        
$anno_sel=substr($row['al_giorno'],0,4);
                                        
$mese_sel=substr($row['al_giorno'],5,2);
                                        
$giorno_sel=substr($row['al_giorno'],8,2);
                                        
$anno_par=$anno_att-50;?>
                                        <option value="00">00</option>
                                        <?
                                        
for ($n=1;$n<=31;$n=$n+1){
                                            
$n=sprintf("%02d",$n);?>
                                               <option value=<?=$n?>><?=$n?></option><?
                                        
}?></select>
                                        <select name="mm2">
                                        <option value="00">00</option>
                                        <option value="01">01</option>
                                        <option value="02">02</option>
                                        <option value="03">03</option>
                                        <option value="04">04</option>
                                        <option value="05">05</option>
                                        <option value="06">06</option>
                                        <option value="07">07</option>
                                        <option value="08">08</option>
                                        <option value="09">09</option>
                                        <option value="10">10</option>
                                        <option value="11">11</option>
                                        <option value="12">12</option>
                                        </select>
                                        <select name="aa2">
                                        <option value="0000">0000</option>
                                        <?
                                        
for ($n=2007;$n<=2007;$n=$n+1){?>
                                            <option value=<?=$n?>><?=$n?></option><?
                                        
}?></select>
    </td>
      </tr>
            <tr>
    <td height="1" colspan="5" valign="top" bgcolor="BE743F"></td>
    </tr>