Perhaps you should try some spelling variations:
nang quan » ban quan, nang suat
quan hang » quan hoang, quan lang, quan hanh
hang cong » dang cong, hang nong, bang cong
anh nang » ganh nang, anh bang, anh dang
cong san » cong tac
than tap » toan tap, phan tap, than cap
ho chuc » hoi chuc, hoc chuc, ho chua
han tap » han tai, toan tap, nhan tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chuc nang - anh nang quan hang cong san ((than tap) or (han tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chuc nang - anh nang quan hang cong san ((than tap) OR (han tap)).
• Adding a wildcard symbol may retrieve word variants: ho chuc nang - anh nang quan hang cong san ((than tap) or (han tap))*.