Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
cong thanh » dong thanh, cong trinh, cong tan
doi chieu » doc hieu, doi chi, ho chieu
trinh va » trinh van, trinh vat, trinh ve
cong dan » cong san, cong tan, huong dan
toan cau » toan cao, toan ban, toan tap
va lang » va nang, hoa lang

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) or (toc thieu)) xanh - canh trinh va lang ((cong dan) or (cong thanh)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (toc thieu)) xanh - canh trinh va lang ((cong dan) OR (cong thanh)) toan cau.
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (toc thieu)) xanh - canh trinh va lang ((cong dan) or (cong thanh)) toan cau*.