Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
duong cong » dung cong, luong cong, duong trong
doc hieu » toc thieu, hoc thieu, hoc hien
trung va » truong va, trang va, trung ha
va duong » van duong, va tuong, va huong
cong ban » cong bang, cong san, cong tan
ban than » ban thanh, van thanh, ban hang
than cao » toan cao, thai cao, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) or (doc hieu)) xanh - thanh trung va duong cong ban than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (doc hieu)) xanh - thanh trung va duong cong ban than cao.
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (doc hieu)) xanh - thanh trung va duong cong ban than cao*.