Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chiet » theo chieu
thep thiet » thep viet, thuyet thiet
nhung cong » dung cong, thong cong, hang cong
trung ha » trung hoc, trung tam, trung cap
ha nhung » hoa nhung, hay nhung, pha nhung
tac phan » tac pham, tai phan, cac phan
tac phat » tac pham, tam phat, tan phat

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chiet) or (thep thiet)) tach - thanh trung ha nhung cong ((tac phan) OR (tac phat)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chiet) OR (thep thiet)) tach - thanh trung ha nhung cong ((tac phan) OR (tac phat)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chiet) or (thep thiet)) tach - thanh trung ha nhung cong ((tac phan) OR (tac phat)) cau".
• Adding a wildcard symbol may retrieve word variants: ((theo chiet) or (thep thiet)) tach - thanh trung ha nhung cong ((tac phan) OR (tac phat)) cau*.