Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
trung tuan » trung thanh, tran tuan, truong thanh
nhung cong » dung cong, thong cong, hang cong
cong quang » luong quang, thong quang, duong quang
ho chieu » theo chieu, hoc thieu, doi chieu
than cau » toan cau, than cap, thanh chau
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: ho chieu sang - thanh ((trung tuan) OR (trung tam)) nhung cong quang ((than cau) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - thanh ((trung tuan) OR (trung tam)) nhung cong quang ((than cau) OR (phan cau))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sang - thanh ((trung tuan) OR (trung tam)) nhung cong quang ((than cau) or (phan cau))*".