Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
canh trinh » canh tranh, hanh trinh, canh tinh
hoc chieu » hoc thieu, ho chieu, hoc hien
trinh va » trinh van, trinh vat, trinh ve
cong tac » cong ty
toan cau » toan cao, toan ban, toan tap
va dang » van dang, va nang, va lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu xanh - canh trinh va dang ((((cong san) or (cong tac))) or (huong dan)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - canh trinh va dang ((((cong san) OR (cong tac))) OR (huong dan)) toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - canh trinh va dang ((((cong san) or (cong tac))) or (huong dan)) toan cau*.