Perhaps you should try some spelling variations:
thanh trung » thanh tung
nhiet nang » nhiet dong, viet nang, nhieu tang
doi nhiet » troi nhiet, doi chieu, doi viet
tong cong » trong cong, cong cong, dung cong
van thanh » ban thanh, van tuan
trung va » truong va, trang va, trung ha
van toan » van tuan, van tan, manh toan
va tong » va thong, va tuong, va trong

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi nhiet nang - thanh trung va tong cong ((van toan) OR (van thanh)) cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi nhiet nang - thanh trung va tong cong ((van toan) OR (van thanh)) cao*".