Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
tranh luan » trinh luan, trinh luat, tang luan
doanh luan » doanh nhan
trinh cong » trinh dung
doc chieu » doc hieu, doi chieu, toc thieu
cong manh » cong danh, duong manh, cong thanh
manh van » anh van, menh van, canh van

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc chieu sach - thanh ((tranh luan) or (doanh luan)) trinh cong manh van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc chieu sach - thanh ((tranh luan) OR (doanh luan)) trinh cong manh van ban.
• Adding a wildcard symbol may retrieve word variants: doc chieu sach - thanh ((tranh luan) or (doanh luan)) trinh cong manh van ban*.