Perhaps you should try some spelling variations:
hieu lang » chieu sang, hieu quang, nhieu tang
duoc hung » duoc nhung, duc hung, quoc hung
hung cong » nhung cong, hung cuong, phung cong
anh nhan » danh nhan, thanh nhan, benh nhan
cong tac » cong ty
toan cao » toan tap
toan ban » van ban
ho hieu » ho chieu, hoi hieu, nho hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu lang - ((anh nhan) OR (doanh nhan)) duoc hung cong tac ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - ((anh nhan) OR (doanh nhan)) duoc hung cong tac ((toan cao) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho hieu lang - ((anh nhan) OR (doanh nhan)) duoc hung cong tac ((toan cao) or (toan ban))".
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - ((anh nhan) OR (doanh nhan)) duoc hung cong tac ((toan cao) or (toan ban))*.