writer_publisher

$tax_query = array(
	'relation' => 'AND',
	array(
		'taxonomy'         => 'publisher',
		'terms'            => 'authorName',
		'field'            => 'name',
	),
	array(
		'taxonomy'         => 'writer',
		'terms'            => 'WriterName',
		'field'            => 'name',
		'include_children' => true,
	),
);