Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thang long » thanh cong
doi chieu » doc hieu, doi chi, ho chieu
hang nong » han tong
ban dang » ban hang, ban dan, van dang
dang van » hoang van, hang va
san can » san van, ban can, san chang
can cau » van cau, ban cau, ca cau

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 - ban dang van ((hang nong) or (thang long)) san can cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - ban dang van ((hang nong) OR (thang long)) san can cau.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - ban dang van ((hang nong) or (thang long)) san can cau*.