Perhaps you should try some spelling variations:
theo chieu » ho chieu, theo chu, thi chieu
canh trinh » canh tranh, hanh trinh, canh tinh
trinh luan » trinh luat, trinh quan, trinh han
luan hung » luan chung, lan hung, luan ung
hung cong » nhung cong, hung cuong, phung cong
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) or (theo tieu)) tinh - canh trinh luan hung cong san toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (theo tieu)) tinh - canh trinh luan hung cong san toan ban.
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (theo tieu)) tinh - canh trinh luan hung cong san toan ban*.