Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
trinh thuc » trinh tu, trinh thi
mot chieu » doi chieu, ho chieu
hanh cong » thanh cong, hang cong, hanh dong
cong san » cong tac
san tuan » van tuan, san luan, san quan
tuan tap » toan tap, tuan tai, tuyen 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)) tinh - hanh ((trinh thuc) or (trinh ky)) hanh cong san tuan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (theo chieu)) tinh - hanh ((trinh thuc) OR (trinh ky)) hanh cong san tuan tap.
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) or (theo chieu)) tinh - hanh ((trinh thuc) or (trinh ky)) hanh cong san tuan tap*.