Perhaps you should try some spelling variations:
thanh tran » thanh trang, thanh toan, thanh tra
nhung cong » dung cong, thong cong, hang cong
chua xang » chua nang, chuc nang, chu bang
van nhung » van nhuong, va nhung, van hung
ban thanh » ban hanh, ban hang
chu manh » ho manh, chu han, chu van
tran van » luan van
dan than » dan chan, ban than, van than

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: cho ((chua xang) OR (chu manh)) - thanh tran van nhung cong ((dan than) OR (ban thanh)) cau~.
• Adding a wildcard symbol may retrieve word variants: cho ((chua xang) or (chu manh)) - thanh tran van nhung cong ((dan than) or (ban thanh)) cau*.