Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
toc hieu » doc hieu, hoc thieu, thuc hieu
anh sang » lanh sang, anh bang, anh dang
anh nang » ganh nang, anh bang, anh dang
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.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc hieu) OR (toc thieu)) manh - ((anh sang) OR (anh nang)) cua nhung cong tac toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((toc hieu) OR (toc thieu)) manh - ((anh sang) or (anh nang)) cua nhung cong tac toan ban~".
• Adding a wildcard symbol may retrieve word variants: ((toc hieu) OR (toc thieu)) manh - ((anh sang) or (anh nang)) cua nhung cong tac toan ban*.