Search CPT

Add CPT(s) to WP search:

function search_cpt( $query ) {
	if ( $query->is_search ) {
		$query->set( 'post_type', array( 'post', 'page', 'feed', 'custom_post_type1', 'custom_post_type2') );
	}
	return $query;
}
add_filter( 'the_search_query', 'search_cpt' );