Perhaps you should try some spelling variations:
thanh trung » thanh tung
doi chieu » doc hieu, doi chi, mot chieu
trung cua » truong cua, trung tuan, trung cap
ho chieu » theo chieu, hoc thieu, mot chieu
cua tong » cua cong, cua dong, cua nong
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
than cap » khan cap, thanh lap, thanh cac

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 (doi chieu)) xanh - thanh trung cua tong ((cong dan) OR (cong san)) than cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (doi chieu)) xanh - thanh trung cua tong ((cong dan) or (cong san)) than cap~".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (doi chieu)) xanh - thanh trung cua tong ((cong dan) or (cong san)) than cap*.