Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
gian nan » gian dan, gian lan, gian van

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 - canh tranh cua nhung ((cong dan) or (cong tan)) gian nan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - canh tranh cua nhung ((cong dan) OR (cong tan)) gian nan.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - canh tranh cua nhung ((cong dan) or (cong tan)) gian nan*.