Perhaps you should try some spelling variations:
nhieu tang » chieu sang, nhiet nang
nhung hong » nhung chong, nhung huong, nhung phong
hieu lang » chieu sang, hieu quang, hieu van
trang va » hang va
tran van » luan van
hong van » hoang van, thong van, phong van
van chat » cao chat
chat ban » nhat ban, chat ran, cua ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((nhieu tang) or (hieu lang)) - thanh ((trang va) or (tran van)) nhung hong van chat ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((nhieu tang) OR (hieu lang)) - thanh ((trang va) OR (tran van)) nhung hong van chat ban.
• Adding a wildcard symbol may retrieve word variants: doi ((nhieu tang) or (hieu lang)) - thanh ((trang va) or (tran van)) nhung hong van chat ban*.