tax

$tax_query = array(
	'relation' => 'OR',
	array(
		'taxonomy'         => 'action-156',
		'terms'            => 'aaaaa1',
		'field'            => 'slug',
	),
	array(
		'taxonomy'         => 'action-156',
		'terms'            => 'aaaaa2',
		'field'            => 'slug',
	),
);