สอบถามปัญหา ส่งค่า form ค้นหาภาษาไทยแต่มันขึ้น ?????? แก้ยังไงครับ

<?php
	ini_set('display_errors', 1);
	error_reporting(~0);

	$strKeyword = null;

	if(isset($_POST["txtKeyword"]))
	{
		$strKeyword = $_POST["txtKeyword"];
	}
	if(isset($_GET["txtKeyword"]))
	{
		$strKeyword = $_GET["txtKeyword"];
	}
?>

<form align="center"  name="frmSearch" method="post" action="index.php?admin=search">
  <div class="form-group">
    <label for="exampleInputEmail1">ค้นหา </label>
    <input name="txtKeyword" class="form-control" type="text" placeholder="นนทิการ" id="txtKeyword" value="<?php echo $strKeyword;?>">
	 <input type="submit" class="btn btn-danger" value="เริ่มค้นหา">
  </div>

 
</form>

<?php
	ini_set('display_errors', 1);
	error_reporting(~0);
	
	$serverName = "xxxxxxxxxxxxxxxxxxx";
	$userName = "xxxxxxxxxxxxxxx";
	$userPassword = 'xxxxxxxxxxxxxxxx';
	$dbName = "xxxxxxxxxxxxxxxxxxxxxxxx";
	$connectionInfo = array("Database"=>$dbName, "UID"=>$userName, "PWD"=>$userPassword, "MultipleActiveResultSets"=>true, "CharacterSet" => "UTF-8");
	$conn = sqlsrv_connect( $serverName, $connectionInfo);
    
	
	$sql = "SELECT * FROM xxxx WHERE xxxx '%".$strKeyword."%' ";

	$params = array();
	$options =  array( "Scrollable" => SQLSRV_CURSOR_KEYSET );
	$query = sqlsrv_query( $conn, $sql , $params, $options );

	$num_rows = sqlsrv_num_rows($query);

	$per_page = 100;   // Per Page
	$page  = 1;
	
	if(isset($_GET["Page"]))
	{
		$page = $_GET["Page"];
	}

	$prev_page = $page-1;
	$next_page = $page+1;

	$row_start = (($per_page*$page)-$per_page);
	if($num_rows<=$per_page)
	{
		$num_pages =1;
	}
	else if(($num_rows % $per_page)==0)
	{
		$num_pages =($num_rows/$per_page) ;
	}
	else
	{
		$num_pages =($num_rows/$per_page)+1;
		$num_pages = (int)$num_pages;
	}
	$row_end = $per_page * $page;
	if($row_end > $num_rows)
	{
		$row_end = $num_rows;
	}


	$sql = " SELECT c.* FROM (
		SELECT ROW_NUMBER() OVER(ORDER BY CustomerID) AS RowID,*  FROM xxxx  WHERE xxx  LIKE '%".$strKeyword."%'
		) AS c 
	WHERE c.RowID > $row_start AND c.RowID <= $row_end
	";
	
	

	$query = sqlsrv_query( $conn, $sql);

?>
<table width="100%" border="1">
  <tr>
    <th bgcolor="#333333" width="91"> <div align="center"><font color="#FFFFFF">name </font></div></th>

 
  </tr>
<?php
while($result = sqlsrv_fetch_array($query, SQLSRV_FETCH_ASSOC))
	
{
	
	
?>
  <tr>
    <td width="10%" bgcolor="#CCCCCC"><div align="center"><?php echo $result["name"];?></div></td>

    
  </tr>
<?php
}
?>
</table>
<br>
จำนวนทั้งหมด <?php echo $num_rows;?> 
<?php
sqlsrv_close($conn);
?>