Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, nhung don
hanh dung » thanh dung, anh dung, hanh dong
hang cong » dang cong, hang nong, bang cong
chu bang » thu bang, chuc nang, chu quang
dan chan » dan gian, dan ca, van chat
chan cau » phan cau, can cau, chinh cau
hoi chu » hoi chuc

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoi chu bang - hanh dung luan ((nhung cong) or (hang cong)) dan chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi chu bang - hanh dung luan ((nhung cong) OR (hang cong)) dan chan cau*.