Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
hanh tang » hanh trang, anh tang, hanh mang
cua nhung » va nhung
tang cua » mang cua, hang cua, tang luan
san toan » van toan, manh toan, xuan toan
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 tang cua nhung cong ((san toan) or (dan toan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - hanh tang cua nhung cong ((san toan) OR (dan toan)) ban.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - hanh tang cua nhung cong ((san toan) or (dan toan)) ban*.