Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
tang luan » dung luan
dung cong » dung trong
ban thanh » ban hanh, ban hang
mang cua » manh cua, dung cua, ban cua
dan toan » van toan, dan than, manh toan

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 - hanh ((mang cua) or (tang luan)) dung cong ((dan toan) or (ban thanh)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - hanh ((mang cua) OR (tang luan)) dung cong ((dan toan) OR (ban thanh)) cau.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - hanh ((mang cua) or (tang luan)) dung cong ((dan toan) or (ban thanh)) cau*.