Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
cong thanh » dong thanh, cong trinh, cong tan
canh tang » anh tang, canh tranh, cang thang
tang vat » tang van, dang vat, bang vat
vat dung » van dung, va dung, viet dung
cong dan » cong san, cong tan, huong dan
cong tac » cong ty
toan ban » van ban

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: theo chieu xanh - canh tang vat dung ((cong dan) OR (((cong thanh) OR (cong tac)))) toan ban~.
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - canh tang vat dung ((cong dan) or (((cong thanh) or (cong tac)))) toan ban*.