Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
truong cao » truong dai
truong cua » truong ca, truong quan, huong cua
doi chieu » doc hieu, doi chi, ho chieu
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
phan cau » phan dau, phan cac, phan tu

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 ((truong cao) or (truong cua)) chong ((cong dan) OR (cong san)) phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - thanh ((truong cao) OR (truong cua)) chong ((cong dan) OR (cong san)) phan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sang - thanh ((truong cao) or (truong cua)) chong ((cong dan) OR (cong san)) phan cau*".