A plumbing snake (also sometimes called a "flexible cleaning tool" or "auger") is a flexible coil of wire that can "snake" through the curves of a drain and get deeper than a wire can. The best snake is a "closet auger" which is designed specifically to clear toilet clogs without damaging or staining the bowl. A plumber would likely use a closet auger. Push down, feeding the snake further into the drain until you feel an obstruction. The goal is to break up the obstruction into smaller pieces that can move through the pipes. It may take a few minutes of maneuvering to clear the obstruction. Once the water drains, flush the toilet to see whether it drains as quickly as normal. It may become necessary to remove the toilet and run the snake through in the opposite direction. This is especially true with hard obstructions that may have been flushed by a curious child. If the obstruction is known to be hard and you are not comfortable removing and replacing the toilet, contact a plumber.

How would you rephrase that briefly using Vietnamese?
Mua hoặc mượn dây cáp thông cống. Luồn một đầu cáp vào lỗ thoát. Vặn và đẩy dây cáp qua vật cản. Thông dây cáp theo chiều ngược lại.