Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
mot chieu » doi chieu, ho chieu
thi chieu » thi chien, thi hieu, thi hien
hanh dung » thanh dung, anh dung, hanh dong
luan nang » luan van, van nang, luan san
nang cong » nang song, dang cong, bang cong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
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: ((((mot chieu) or (theo chieu))) or (thi chieu)) xanh - hanh dung luan nang cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((mot chieu) OR (theo chieu))) OR (thi chieu)) xanh - hanh dung luan nang cong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: ((((mot chieu) or (theo chieu))) or (thi chieu)) xanh - hanh dung luan nang cong dan toan cau*.