Missing Controller

Error: Khi-o2-cung-cap-khi-o2Controller could not be found.

Error: Create the class Khi-o2-cung-cap-khi-o2Controller below in file: app/controllers/khi-o2-cung-cap-khi-o2_controller.php

<?php
class Khi-o2-cung-cap-khi-o2Controller extends AppController {

	var $name = 'Khi-o2-cung-cap-khi-o2';
}
?>

Notice: If you want to customize this error message, create app/views/errors/missing_controller.ctp