Perhaps you should try some spelling variations:
thanh trung » thanh tung
cong thanh » dong thanh, cong trinh, truong thanh
hieu lang » chieu sang, hieu quang, nhieu tang
trung cua » truong cua, trung tuan, trung cap
nho hieu » nha hieu, nho sieu, nhu hieu
cua dang » cua cong, cua ban
cong tac » cong ty
cong tan » cong san, cong ty, cong ha
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: nho hieu lang - thanh trung cua dang ((cong tac) OR (((cong tan) OR (cong thanh)))) than cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "nho hieu lang - thanh trung cua dang ((cong tac) or (((cong tan) OR (cong thanh)))) than cap~".
• Adding a wildcard symbol may retrieve word variants: nho hieu lang - thanh trung cua dang ((cong tac) or (((cong tan) OR (cong thanh)))) than cap*.