Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
cong suat » nang suat, cong san, cong cua
suat phan » sat phan, xuat phan, thuat phan
cua dung » cua dang, cua dong, qua dung
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 sach) OR (chieu sang)) - canh tranh ((cua dung) or (cua cong)) cong suat phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chieu sang)) - canh tranh ((cua dung) OR (cua cong)) cong suat phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) OR (chieu sang)) - canh tranh ((cua dung) or (cua cong)) cong suat phan cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) OR (chieu sang)) - canh tranh ((cua dung) or (cua cong)) cong suat phan cau*.