Perhaps you should try some spelling variations:
quan nhung » qua nhung, cua nhung, luan chung
nhieu tang » chieu sang, nhiet nang
nhung cong » dung cong, thong cong, hang cong
hieu lang » chieu sang, hieu quang, hieu van
hanh dong » ha dong
anh dong » anh huong, anh son
cong van » cong vang, cong san, song van
van tuan » van quan, van ban, anh tuan
tuan ban » tuan bang, toan ban, luan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((nhieu tang) or (hieu lang)) - ((hanh dong) or (anh dong)) quan nhung cong van tuan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((nhieu tang) OR (hieu lang)) - ((hanh dong) OR (anh dong)) quan nhung cong van tuan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((nhieu tang) or (hieu lang)) - ((hanh dong) or (anh dong)) quan nhung cong van tuan ban*.