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