MetaRE

$meta_query = array(
	'relation' => 'AND',
	array(
		'key'     => 'departement',
		'compare' => 'LIKE',
		'type'    => 'CHAR',
	),
	array(
		'key'     => 'secteur',
		'compare' => 'LIKE',
	),
	array(
		'key'     => 'type_de_contract',
		'compare' => 'LIKE',
	),
);