regions taxonomy

$tax_query = array(
	'relation' => 'AND',
	array(
		'taxonomy'         => 'region',
		'terms'            => array( 'asia', ' africa', ' europe' ),
		'field'            => 'slug',
		'operator'         => 'IN',
	),
	array(
		'taxonomy'         => 'focus',
		'terms'            => array( 'alpine-garden-society', ' mamal-watching', ' through-the-lens', ' uk-day-trips', ' wildlife-at-leisure' ),
		'field'            => 'slug',
		'operator'         => 'AND',
	),
);