Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » dung cong, thong cong, hang cong
dang cong » dung cong
trung ha » trung hoc, trung tam, trung cap
ban than » ban thanh, van thanh, ban hang
than cap » khan cap, thanh lap, thanh cac

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 xanh - thanh trung ha ((nhung cong) or (dang cong)) ban than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - thanh trung ha ((nhung cong) OR (dang cong)) ban than cap.
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - thanh trung ha ((nhung cong) or (dang cong)) ban than cap*.