Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
thanh tung » thanh cong
quan nhung » qua nhung, cua nhung, luan chung
doi chieu » doc hieu, doi chi, ho chieu
tung quan » tuong quan, trung quan, dung quan
cong san » cong tac
phan cau » phan cac, phan tu, phan lap
phan dau » phan tu, hang dau

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 tung quan nhung ((nang suat) or (cong san)) ((phan cau) or (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - thanh tung quan nhung ((nang suat) OR (cong san)) ((phan cau) OR (phan dau)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - thanh tung quan nhung ((nang suat) or (cong san)) ((phan cau) or (phan dau))*.