Missing Method in ProductsController

Error: The action 51-sua-chua-nha is not defined in controller ProductsController

Error: Create ProductsController::51-sua-chua-nha() in file: public_html/controllers/products_controller.php.

<?php
class ProductsController extends AppController {

	var $name = 'Products';


	function 51-sua-chua-nha() {

	}

}
?>

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

(default) 3 queries took 3 ms
NrQueryErrorAffectedNum. rowsTook (ms)
1SHOW FULL COLUMNS FROM `products`16161
2SELECT CHARACTER_SET_NAME FROM INFORMATION_SCHEMA.COLLATIONS WHERE COLLATION_NAME= 'utf8_general_ci';111
3SHOW FULL COLUMNS FROM `catproducts`881