Perhaps you should try some spelling variations:
thanh trung » thanh tung
chiet tach » chieu sach
trung tuan » trung thanh, trung tam, tran tuan
tuan thong » toan thong, tran thong, tuan phong
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
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: ho ((chinh sach) OR (chiet tach)) - thanh trung tuan thong ((cong dan) OR (cong san)) toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chinh sach) or (chiet tach)) - thanh trung tuan thong ((cong dan) OR (cong san)) toan cau~".
• Adding a wildcard symbol may retrieve word variants: ho ((chinh sach) or (chiet tach)) - thanh trung tuan thong ((cong dan) OR (cong san)) toan cau*.