Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
doi chieu » doc hieu, doi chi, ho chieu
hang cong » dang cong, hang nong, bang cong
tung van » trung van, tang van, tong van
dung van » duong van, dung va, dang van
cong tac » cong ty
tac toan » tap toan, tam toan, hach 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 (doi chieu)) xanh - thanh ((tung van) or (dung van)) hang cong tac toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (doi chieu)) xanh - thanh ((tung van) OR (dung van)) hang cong tac toan ban.
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (doi chieu)) xanh - thanh ((tung van) or (dung van)) hang cong tac toan ban*.