Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
hanh manh » hanh mang, lanh manh, hoang manh
dong cong » duong cong, dung cong, dang cong
van thang » van thanh, van khang, van hang
manh cua » doanh cua, ban cua
cua dong » chua dong, cua cong, cua dang
dan than » dan chan, ban than, van than

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 manh cua dong cong ((dan than) or (van thang)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - hanh manh cua dong cong ((dan than) OR (van thang)) ban*.