ช่วยดู ค้นหาให้หน่อยครับ ผมงงไปหมดแล้ว เพื่อนส่งมาให้

<?php

$link=mysql_connect("localhost","root","1234") or die("error".mysql_error());
 mysql_select_db("project_manage",$link);


?>

<form name="frmSearch" method="get" action="<?=$_SERVER['SCRIPT_NAME'];?>" >
  <table width="599" border="0" align="center">
    <tr>
      <th>¤Ó¤é¹
      <input name="txtKeyword" type="text" id="txtKeyword"  size="30"value="<?=$_GET["txtKeyword"];?>">
      <input type="submit" value="ค้นหา">
      <input name="all" type="submit" value="ค้นหาทั้งหมด"></th>
    </tr>
  </table> <br>

 <select name="years" id="years"  >  
<?php  
   $q=" select *  from  year  ";  
    $qr=mysql_query($q);  
     
?>  


<?while($rs=mysql_fetch_array($qr)){ ?>
<option value="<?=$rs['year_id']?>"> จากปีการศึกษา  :<?=$rs['ref_project_year']?></option>
  
<?php } ?>      
</select><br><br>
</th>
    </tr>
  </table> <br>
</form>

<table width="868" height="65" border="1" align="center" bordercolor=" #EAEAEA" bgcolor="#F0F0F0">
	  <tr bordercolor= "#FFFFFF">
		<th width="55" bordercolor= "#FFFFFF"> <div align="center">ลำดับที่ </div></th>
		<th> <div align="center">ชื่อ </div> </th>
<th> <div align="center">ปี </div> </th>
		
  </tr>

<?$where = '';   
if($txtKeyword){
$where  .= " or project_name_eng like '%".$_GET['txtKeyword']."%'  "; 
if($years){
$where .= " or year_id like '%".$_GET['years']."%'  "; 
}
$link=mysql_connect("localhost","root","1234") or die("error".mysql_error());
 mysql_select_db("project_manage",$link);

$sql = mysql_query(" select year.*,project.* from project,year where  project.project_year=year.year_id<>'' $where order by project_name_eng ASC ");   

$objQuery = mysql_query($sql) or die ("Error Query [".$sql."]");
	while($objResult = mysql_fetch_array($objQuery))
	{
	 $project_id = $objResult[project_id];
	 $i++;	
	?>
//ส่วนแสดงข้อมูล
<tr bordercolor= "#FFFFFF">
		<td bordercolor= "#FFFFFF"><div align="center"><? echo  "$i";?></div></td>
		<td> <a href="form_show_project.php?project_id=<?=$project_id?>" ><?=$objResult['project_name_thai'];?>/<?=$objResult['project_name_eng'];?></a></td>
		<td bordercolor=" #FFFFFF"><div align="center"><?=$objResult['ref_project_year'];?>
		</div></td>
	  </tr>
<?} ?>
</table>