สอบถาม PHP MySQL Search Data Paging/Pagination เวลาค้นหาหน้า 2 มันแสดงหมดเลยครับ

<?php 
  include("config_mysqli.php") ;

  $sql = "SELECT data_user.*,data_car.*,data_prb.*,data_ins.* FROM data_user 
              left JOIN data_car on data_user.id=data_car.id
              left JOIN data_prb on data_user.id=data_prb.id
              left join data_ins on data_user.id=data_ins.id
             
              WHERE (name LIKE '%".$strKeyword."%' or car_num LIKE '%".$strKeyword."%')";
 //WHERE data_user.member_id = '$_SESSION[login_true]' << เด่วค่อยเอาไปใส่ตรง sql

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

  $num_rows = mysqli_num_rows($query);

  $per_page = 3;   // 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 .= " ORDER BY data_user.id desc LIMIT $row_start ,$row_end ";
    $query = mysqli_query($conn,$sql); 
//echo($sql);
?>

Total <?php echo $num_rows;?> Record : <?php echo $num_pages;?> Page :
<?php
if($prev_page)
{
  echo " <a href='$_SERVER[SCRIPT_NAME]?Page=$prev_page&txtKeyword=$strKeyword'><< Back</a> ";
}

for($i=1; $i<=$num_pages; $i++){
  if($i != $page)
  {
    echo "[ <a href='$_SERVER[SCRIPT_NAME]?Page=$i&txtKeyword=$strKeyword'>$i</a> ]";
  }
  else
  {
    echo "<b> $i </b>";
  }
}
if($page!=$num_pages)
{
  echo " <a href ='$_SERVER[SCRIPT_NAME]?Page=$next_page&txtKeyword=$strKeyword'>Next>></a> ";
}
$conn = null;
?>