Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
dung cong » dung trong
anh mang » hanh mang, anh bang, anh nang
anh dang » anh dong, anh dung, anh bang
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap
va dung » van dung, va duong, vat dung

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 - ((anh mang) or (anh dang)) va dung cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - ((anh mang) OR (anh dang)) va dung cong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - ((anh mang) or (anh dang)) va dung cong dan toan cau*.