Limit WordPress Search to a Specific Post Type

The following snippet lets you limit WordPress search to a specific Custom Post Type so results come only from that post type. Add to functions.php and set the post type(s) to search on line 4:

function SearchFilter($query) {
  if ($query->is_search) {
    // Insert the specific post type you want to search
    $query->set('post_type', 'feeds');
  }
  return $query;
}

add_filter('pre_get_posts','SearchFilter');