function list_searcheable_acf(){

		$list_searcheable_acf = array('title', 'sub_title', 'excerpt_short', 'excerpt_long', 'codigo', 'cor', 'desenho', 'variacao', 'comissao_vendedor', 'largura_vies', 'valor_unitario', 'quantidade', 'valor_total');

		return $list_searcheable_acf;

	}

	function advanced_custom_search($where, &$wp_query ){

		global $wpdb;

		if(empty($where))

			return $where;

		// get search expression
		$terms = $wp_query->query_vars[ 's' ];

		// explode search expression to get search terms
		$exploded = explode( ' ', $terms );

		if($exploded === FALSE || count($exploded) == 0)

			$exploded = array( 0 => $terms );

		// reset search in order to rebuilt it as we whish
		$where = '';

		// get searcheable_acf, a list of advanced custom fields you want to search content in
		$list_searcheable_acf = list_searcheable_acf();

		foreach($exploded as $tag):

			$where .= "
				AND (
					(wp_posts.post_title LIKE '%$tag%')
					OR (wp_posts.post_content LIKE '%$tag%')
					OR EXISTS (
						SELECT * FROM wp_postmeta
							WHERE post_id = wp_posts.ID
								AND (";

			foreach($list_searcheable_acf as $searcheable_acf):

				if($searcheable_acf == $list_searcheable_acf[0]):

					$where .= " (meta_key LIKE '%" . $searcheable_acf . "%' AND meta_value LIKE '%$tag%') ";

				else:

					$where .= " OR (meta_key LIKE '%" . $searcheable_acf . "%' AND meta_value LIKE '%$tag%') ";

				endif;

			endforeach;

			$where .= ")
				)
				OR EXISTS (
				  SELECT * FROM wp_comments
				  WHERE comment_post_ID = wp_posts.ID
					AND comment_content LIKE '%$tag%'
				)
				OR EXISTS (
					SELECT * FROM wp_terms
					INNER JOIN wp_term_taxonomy
					ON wp_term_taxonomy.term_id = wp_terms.term_id
					INNER JOIN wp_term_relationships
					ON wp_term_relationships.term_taxonomy_id = wp_term_taxonomy.term_taxonomy_id
					WHERE (
						taxonomy = 'post_tag'
						OR taxonomy = 'category'
						OR taxonomy = 'myCustomTax'
					)
					AND object_id = wp_posts.ID
					AND wp_terms.name LIKE '%$tag%'
				)
			)";

		endforeach;

		return $where;

	}add_filter('posts_search', 'advanced_custom_search', 500, 2);


	function cf_search_join($join){

		global $wpdb;

    	if(is_search()):

			$join .=' LEFT JOIN '.$wpdb->postmeta. ' ON '. $wpdb->posts . '.ID = ' . $wpdb->postmeta . '.post_id ';

		endif;

		return $join;

	}add_filter('posts_join', 'cf_search_join' );


	function cf_search_where($where){

		global $pagenow, $wpdb;

		if(is_search()):

        	$where = preg_replace("/\(\s*".$wpdb->posts.".post_title\s+LIKE\s*(\'[^\']+\')\s*\)/", "(".$wpdb->posts.".post_title LIKE $1) OR (".$wpdb->postmeta.".meta_value LIKE $1)", $where);

		endif;

		return $where;

	}add_filter('posts_where', 'cf_search_where');


	function cf_search_distinct($where){

		global $wpdb;

		if(is_search()):

			return 'DISTINCT';

		endif;

		return $where;

	}add_filter('posts_distinct', 'cf_search_distinct');