Test

$meta_query = array(
	'relation' => 'OR',
	array(
		'key'     => 'phone_number',
		'value'   => '$search_term',
		'compare' => 'LIKE',
		'type'    => 'CHAR',
	),
	array(
		'key'     => 'user_email',
		'value'   => '$search_term',
		'compare' => 'LIKE',
		'type'    => 'CHAR',
	),
);