Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
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 » huong dan, cong dong, cong tac
cong san » cong tac
cong tan » cong tac, cong thanh, cong ty
toan ban » van ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu xanh - canh tang vat dung ((((cong dan) OR (cong san))) or (cong tan)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - canh tang vat dung ((((cong dan) OR (cong san))) OR (cong tan)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - canh tang vat dung ((((cong dan) OR (cong san))) or (cong tan)) toan ban".
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - canh tang vat dung ((((cong dan) OR (cong san))) or (cong tan)) toan ban*.