Perhaps you should try some spelling variations:
nhieu tang » chieu sang, hieu lang, nhiet nang
thanh tung » thanh cong
dung cong » dung trong
ho nhieu » hop nhieu, ho chieu, he nhieu
cua dung » cua dang, cua dong, qua dung
cong tac » cong ty
tac hang » tac vang, bac thang, tac chong
hang cau » hang dau, hang ca, nhung cau

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: ho nhieu tang - ((thanh tung) OR (((manh hung) OR (anh huong)))) cua dung cong tac hang cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho nhieu tang - ((thanh tung) or (((manh hung) OR (anh huong)))) cua dung cong tac hang cau~".
• Adding a wildcard symbol may retrieve word variants: ho nhieu tang - ((thanh tung) or (((manh hung) OR (anh huong)))) cua dung cong tac hang cau*.