Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
canh trang » hanh trang, banh trang, thanh trang
cho chieu » ho chieu, theo chieu, chon chien
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
toan cau » toan cao, toan ban, toan tap
va tong » va thong, va tuong, va trong

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

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