Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chu manh » ho manh, chu han, chu van
tang cua » mang cua, hang cua, tang luan
cong tac » cong ty
tac phan » tac pham, tai phan, tac phat
phan dau » phan tu, hang dau
cho chu » cho thue

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

• Performing a fuzzy search may retrieve terms with similar spellings: cho chu manh - hanh ((tang cua) or (dung luan)) nhung cong tac phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cho chu manh - hanh ((tang cua) OR (dung luan)) nhung cong tac phan dau.
• Adding a wildcard symbol may retrieve word variants: cho chu manh - hanh ((tang cua) or (dung luan)) nhung cong tac phan dau*.