Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, theo chu, thi chieu
trung cap » truong cao, trung tam
ho chieu » hoc thieu, doi chieu, mot chieu
cap dung » ap dung, cao dung, chan dung
cong ban » cong bang, cong san, cong dan
cong tan » cong tac, cong san, cong thanh
khan cap » khan ap, than cap, khoan cam

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chieu)) xanh - thanh trung cap dung ((cong ban) OR (cong tan)) khan cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (theo chieu)) xanh - thanh trung cap dung ((cong ban) OR (cong tan)) khan cap~".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (theo chieu)) xanh - thanh trung cap dung ((cong ban) OR (cong tan)) khan cap*.