customFieldSearch

$meta_query = array(
	'relation' => 'OR',
	array(
		'key'     => 'company_c_name',
		'value'   => 'aaa',
		'compare' => 'LIKE',
	),
	array(
		'key'     => 'company_c_isin',
		'value'   => '1121414',
		'compare' => '=',
	),
);