Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
tran thong » toan thong, tran hong, tran trong
cong tran » cong tan, cong tuan, cong toan
dong yang » dong nang, dong quang, xiong yang
dong bang » dong san
ho chieu » theo chieu, hoc thieu, mot chieu
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: ho chieu sach - thanh cong tran thong ((dong yang) or (dong bang)) phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh cong tran thong ((dong yang) OR (dong bang)) phan dau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh cong tran thong ((dong yang) or (dong bang)) phan dau*.