Perhaps you should try some spelling variations:
canh tinh » hanh tinh, manh tinh, canh tranh
ho chieu » theo chieu, hoc thieu, doi chieu
thi hieu » thi chieu, thi hien, thi dieu
tinh qua » tinh quan, trinh qua, tinh cua
qua dung » quang dung, su dung, qua song
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (thi hieu)) xanh - canh tinh qua dung ((cong dan) or (cong san)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (thi hieu)) xanh - canh tinh qua dung ((cong dan) OR (cong san)) toan cau.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (thi hieu)) xanh - canh tinh qua dung ((cong dan) or (cong san)) toan cau*.