Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
nhung cong » dung cong, thong cong, hang cong
chua nang » chuc nang, chua xang, kha nang
cua nhung » va nhung
hanh ban » thanh ban, hang ban, hanh san
cong san » cong tac
ban cua » ban quan
san van » tan van, luan van, tran van

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu sang) or (chua nang)) - hanh ban cua nhung cong san van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sang) OR (chua nang)) - hanh ban cua nhung cong san van ban.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) or (chua nang)) - hanh ban cua nhung cong san van ban*.