Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
luan duong » tuan duong, luan luong, luan dong
tcong dan » tuong dan, thong dan, trong dan
thanh lap » thanh san, phan lap, thanh hai
ho chieu » theo chieu, hoc thieu, mot chieu
minh dan » minh danh, minh doan, binh dan
dan luan » doanh luan, dung luan, tang luan
cong dan » cong san, cong tan, huong dan

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 - minh dan luan duong ((cong dan) or (tcong dan)) thanh lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - minh dan luan duong ((cong dan) OR (tcong dan)) thanh lap*.