MDC Products Category

$products_category = array(
	'relation' => 'AND',
	array(
		'taxonomy'         => 'mdc_products_category',
		'terms'            => array( '1', '2', '3', '4' ),
		'field'            => 'term_id',
		'operator'         => 'AND',
		'include_children' => false,
	),
);