First, read the English article below.

Whenever you have the urge to bite, do that instead. Some people like to drum their fingers, twiddle their thumbs, clasp their hands, put their hands in their pockets, or just stare at their hands. Just make sure it's not a bad habit; choose a helpful one or one that doesn't really matter either way. Not only will the new hobby keep you from biting your nails, but you could also discover a new passion at the same time. Though you should avoid developing a serious new oral fixation, a few small tricks can keep your mouth busy and will cut down on the amount of time you spent biting your nails. Putting nail polish on your nails may help to discourage you from nibbling on them since a vibrant color can catch your attention and snap you out of your nail-biting habit. You'll also have more motivation to avoid biting your nails since you won't want to ruin the nice appearance.  Chose a color you like so that you don't peel it off. Get a design. This will make you not want to peel off the polish if you like the design. Make polishing your nails a hobby. If you keep nail polish on long enough, your nails will have a chance to grow back! 

Now, please write a short abstract for it in Vietnamese. Abstract:
Tìm một thói quen khác thay cho tật cắn móng tay. Đánh lạc hướng đôi tay bằng cách tìm một sở thích. Giữ cho miệng bận rộn. Sơn móng tay.