Perhaps you should try some spelling variations:
nhanh mang » hanh mang, nhanh quang, nhanh thang
nhanh lang » nhanh quang, nhanh thang, nhan dang
dung cong » dung trong
nho hieu » nha hieu, nhu hieu, nghe hieu
nho sieu » nghe sieu, hoc sieu, anh sieu
cong tan » cong tac, cong san, cong thanh
tran ban » tranh ban, tran van, toan ban
va dung » van dung, va duong, vat dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((nho hieu) or (nho sieu)) lang - ((nhanh mang) or (nhanh lang)) va dung cong tan tran ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((nho hieu) OR (nho sieu)) lang - ((nhanh mang) OR (nhanh lang)) va dung cong tan tran ban.
• Adding a wildcard symbol may retrieve word variants: ((nho hieu) or (nho sieu)) lang - ((nhanh mang) or (nhanh lang)) va dung cong tan tran ban*.