Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trinh » hanh chinh
doi chieu » doc hieu, doi chi, ho chieu
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
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: doi chieu xanh - ((canh tranh) or (hanh trinh)) va dung ((cong dan) or (cong san)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - ((canh tranh) OR (hanh trinh)) va dung ((cong dan) OR (cong san)) toan cau.
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - ((canh tranh) or (hanh trinh)) va dung ((cong dan) or (cong san)) toan cau*.