[WordPress] A strategy for how to retrieve custom post types tagged with multiple taxonomies.

get-posts-with-multiple-taxonomies.php

<?php

$args = array(
	'post_type' => 'acme_post_type',
	'tax_query' => array(
		'relation' => 'AND',
		array(
			'taxonomy' => 'acme_labels'
			'field'    => 'term_id',
			'terms'    => 100
		),
		array(
			'taxonomy' => 'acme_labels',
			'field'    => 'term_id',
			'terms'    => 200
		)
	)
);
$posts = get_posts( $args );