Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chieu tinh » trieu tinh, lieu tinh, chau tinh
hinh thai » sinh thai, tinh thai, dinh thi
sang cong » dang cong, bang cong, hang cong
thai lua » thai luan, thai luat, thai cua
lua sang » luc sang, bua sang, cua sang
cong tan » cong tac, cong san, cong thanh
tan phan » toan phan, than phan, van phan
phan lap » phan 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 sach) OR (chieu tinh)) - hinh thai lua sang cong tan phan lap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu sach) OR (chieu tinh)) - hinh thai lua sang cong tan phan lap*".