Perhaps you should try some spelling variations:
hieu lang » chieu sang, hieu quang, nhieu tang
lang cong » dang cong, bang cong, hang cong
nho hieu » nha hieu, nho sieu, nhu hieu
trang va » hang va
tran van » luan van
dan than » dan chan, van than, dan toan
ban than » ban thanh, van thanh, ban hang

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 lang - hanh ((trang va) or (tran van)) lang cong ((dan than) or (ban than)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nho hieu lang - hanh ((trang va) OR (tran van)) lang cong ((dan than) OR (ban than)) cau.
• Adding a wildcard symbol may retrieve word variants: nho hieu lang - hanh ((trang va) or (tran van)) lang cong ((dan than) or (ban than)) cau*.