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https://tommcfarlin.com/get-posts-with-multiple-taxonomies/

<?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 );