Perhaps you should try some spelling variations:
nhieu tang » chieu sang, nhiet nang
thanh tung » thanh cong
hung cuong » hung vuong, hong cuong, hung luong
thanh toan » thanh hoa, thanh san, tinh toan
hieu lang » chieu sang, hieu quang, hieu van
tung tuan » trung tuan, hung tuan, quang tuan
tuan hung » tran hung, luan hung, tuan dung
van quan » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((hieu lang) OR (nhieu tang)) - thanh tung tuan hung cuong ((thanh toan) or (van quan)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu lang) OR (nhieu tang)) - thanh tung tuan hung cuong ((thanh toan) OR (van quan)) tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((hieu lang) OR (nhieu tang)) - thanh tung tuan hung cuong ((thanh toan) or (van quan)) tap".
• Adding a wildcard symbol may retrieve word variants: doc ((hieu lang) OR (nhieu tang)) - thanh tung tuan hung cuong ((thanh toan) or (van quan)) tap*.