Perhaps you should try some spelling variations:
thanh trung » thanh tung
nhiem trong » nghiep trong
nhieu tang » chieu sang, hieu lang, nhiet nang
trung vat » trung va, trung van, trong vat
vat dung » van dung, va dung, viet dung
cong anh » cong danh, dong anh, cong thanh
hong anh » hoang anh, hong hanh, dong anh
toan tap » toan ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoi ((nhiem trong) or (nhieu tang)) - thanh trung vat dung ((cong anh) or (hong anh)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi ((nhiem trong) OR (nhieu tang)) - thanh trung vat dung ((cong anh) OR (hong anh)) toan tap.
• Adding a wildcard symbol may retrieve word variants: hoi ((nhiem trong) or (nhieu tang)) - thanh trung vat dung ((cong anh) or (hong anh)) toan tap*.