Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
thanh tung » thanh cong
cong quang » luong quang, thong quang, duong quang
thanh chau » thanh cha, thanh cham, thanh chu
doi chieu » doc hieu, doi chi, ho chieu
cua nhung » va nhung
cong san » cong tac

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sang - ((thanh trung) or (thanh tung)) cua nhung ((cong san) or (cong quang)) thanh chau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - ((thanh trung) OR (thanh tung)) cua nhung ((cong san) OR (cong quang)) thanh chau.
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - ((thanh trung) or (thanh tung)) cua nhung ((cong san) or (cong quang)) thanh chau*.