Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, ho chieu
truong ca » truong cao, truong va, trong ca
dung cua » dung luan, dung cho
dan toan » van toan, manh toan, xuan toan
dan than » dan chan, ban than, van than

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

• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - thanh ((dung cua) OR (truong ca)) nhung cong ((dan toan) OR (dan than)) cau~.
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - thanh ((dung cua) or (truong ca)) nhung cong ((dan toan) or (dan than)) cau*.