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
cao khong » cao phong, cat khong, dao khong
cong sang » cong san, cong lang, cong vang
ho chieu » theo chieu, hoc thieu, doi chieu
tung cao » nung cao, truong cao, trung cap
than cau » toan cau, phan cau, than cap

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 tung cao khong ((cong sang) or (cong quang)) than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - thanh tung cao khong ((cong sang) OR (cong quang)) than cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - thanh tung cao khong ((cong sang) or (cong quang)) than cau*.