Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
nhanh luan » nhan luan, khanh luan, nhanh quang
cac phuong » cac truong
va phuong » va thuong
cong tan » cong tac, cong san, cong thanh
tan phan » toan phan, than phan, van phan
phan cac » nhan cach, phan dau, phan lap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu xanh) or (chieu sach)) - nhanh luan ((va phuong) OR (cac phuong)) cong tan phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu sach)) - nhanh luan ((va phuong) OR (cac phuong)) cong tan phan cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) or (chieu sach)) - nhanh luan ((va phuong) OR (cac phuong)) cong tan phan cac".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (chieu sach)) - nhanh luan ((va phuong) OR (cac phuong)) cong tan phan cac*.