First, read the English article below.

A regular old carper cleaner should do a good job here, or you can spring for heavy-duty if the smell is particularly bad. Then go through the mats and give them a good vacuum. Even if you can't clean the mats at least vacuum them.  This alone may help the smell. You're likely to remove small particles that have been thoroughly soaked with or cloaked by smoke, if not remove some of the smell itself.    It goes without saying, but it needs to be said. After cleaning the ashtray out, spray some ordinary air freshener into it out rub around with an absorbent kitchen paper.  This will leave a thin layer of the air freshener in the ashtray. The layer is not enough for the ashtray to be flammable but it is enough to have retain a pleasant scent. Of course, if you're trying to hide the fact that you've been cleaning the car, or that the car needed cleaning in the first place, then hanging a loud car freshener is likely to attract some suspicion. But if you're just concerned with removing noxious odors from your vehicle, then hanging an air freshener or vent can make a big difference. Unlock the doors, turn the engine on, and put your car's heat and air into recirculate while you clean the rest of the car. As you continue to clean the car and remove some of the smoky odors, the new, fresh air will recirculate throughout the entire cabin and improve the quality of air in your car. If you really think your car needs it, consider replacing the cabin's air filter. Consider changing your car's air filters every 12,000–15,000 miles (19,000–24,000 km), or at least once a year. If you can't remember the last time you changed them or had them replaced, do yourself a favor and go for it. It should make a difference. 

Now, please write a short abstract for it in Vietnamese. Abstract:
Làm sạch thảm bằng máy giặt thảm và hút bụi. Dọn sạch ngăn gạt tàn trên xe. Sử dụng nước hoa treo ô tô hoặc nước hoa kẹp cửa gió trong ô tô. Mở máy sưởi và bật quạt thông gió trong xe khoảng 30 phút.