Perhaps you should try some spelling variations:
dung thang » hung thang, cung thang, dung thuong
hieu lang » chieu sang, hieu quang, nhieu tang
hang cong » hang nong, bang cong, thong cong
dang cong » dung cong
thang ban » hang ban, tang ban, thanh ban
mot hieu » mot chieu, moi hieu, mot chien
cong dai » cong dan, cong hai, cong da

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

• Performing a fuzzy search may retrieve terms with similar spellings: mot hieu lang - thanh cong dai ((hang cong) or (dang cong)) dung thang ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: mot hieu lang - thanh cong dai ((hang cong) OR (dang cong)) dung thang ban.
• Adding a wildcard symbol may retrieve word variants: mot hieu lang - thanh cong dai ((hang cong) or (dang cong)) dung thang ban*.