Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung tuan » trung thanh, trung tam, tran tuan
doi chieu » doc hieu, doi chi, mot chieu
tuan dang » tran dang, tuan bang, tuan dung
ho chieu » theo chieu, hoc thieu, mot chieu
cong tac » cong ty
toan cau » toan cao, toan ban, toan tap

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: ((doi chieu) OR (ho chieu)) sang - thanh trung tuan dang ((cong san) OR (cong tac)) toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) or (ho chieu)) sang - thanh trung tuan dang ((cong san) OR (cong tac)) toan cau~".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (ho chieu)) sang - thanh trung tuan dang ((cong san) OR (cong tac)) toan cau*.