User search

// WP_User_Query arguments
$args = array(
	'exclude'        => array( 1 ),
	'search'         => 'blah',
	'search_columns' => array( 'user_login', 'user_nicename', 'user_email' ),
	'number'         => '10',
	'order'          => 'ASC',
	'orderby'        => 'user_login',
	'count_total'    => true,
	'fields'         => 'all',
);

// The User Query
$user_query = new WP_User_Query( $args );