$va=($_GET['search']);
$search=$bd->execute("search","*","page_description LIKE '%$va%' or page_title LIKE '%$va%' limit 8 ");

$search=$bd->execute("search","*","page_description LIKE '%$va%' or page_title LIKE '%$va%' limit 8 ");

$search=$bd->execute("search","*","page_description LIKE %'" + $va + "'% or page_title LIKE %'" + $va + "'% limit 8 ");