Perhaps you should try some spelling variations:
hieu lang » chieu sang, hieu quang, nhieu tang
cu truong » cua truong, cau truong, su truong
vu truong » vu trong, vu thuong, va truong
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
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 - thanh cong ((cu truong) OR (vu truong)) cong tac toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho hieu lang - thanh cong ((cu truong) OR (vu truong)) cong tac toan ban".
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - thanh cong ((cu truong) OR (vu truong)) cong tac toan ban*.