No part of your dishwasher is more likely to responsible for strange odors than the drain filter. Food particles can collect here, and over time in a warm, moist environment they can become disgusting.  There will probably be a cylindrical, detachable filter through which all of the water drains. In order to access the filter, remove the bottom rack, then twist out the filter. Wash the filter with soap and hot water in your sink. It may be difficult to reach all of the interior sections of it with a rag, so you may want to use a bottle brush. Smells may also come from grime that has accumulated throughout the inside of the dishwasher. You must scrub out the entire unit.  Remove all racks from the inside of the dishwasher. These will only get in your way when washing the interior of the dishwasher. Use a rag or brush and hot soapy water to scrub out the interior of the dishwasher. If grime has accumulated and is not easy to remove, consider also using some kitchen-safe household cleaners to help you scrub it out. The seals of the dishwasher door can also accumulate moisture and grime and must be washed. Though they are the unlikeliest cause of smell, you should make sure to rule out all of the simplest possibilities before you invest too much time and energy in the problem.

How would you rephrase that briefly using Vietnamese?
Làm sạch bộ lọc rác. Rửa bên trong cửa và các thành bên trong của máy rửa bát. Rửa miếng đệm cửa. Chà kỹ các giá đỡ của máy rửa bát trong bồn rửa.