Perhaps you should try some spelling variations:
hanh trinh » canh tranh
nang cong » nang song, dang cong, bang cong
ho chieu » theo chieu, hoc thieu, doi chieu
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan tap » toan ban
va nang » van nang, da nang, cam nang

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 (toc thieu)) xanh - ((hanh trinh) or (hanh chinh)) va nang cong san toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (toc thieu)) xanh - ((hanh trinh) OR (hanh chinh)) va nang cong san toan tap.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (toc thieu)) xanh - ((hanh trinh) or (hanh chinh)) va nang cong san toan tap*.