Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh bang » thanh hang, thanh hoang, thanh giang
doi chieu » doc hieu, doi chi, ho chieu
manh toan » thanh toan, anh tuan
thanh ban » thanh san, thanh van, thanh bac
dan thanh » dang thanh, danh thanh, ban thanh
thanh cac » hanh cac, thanh bac, thanh ca
cong dan » cong san, cong tan, huong dan

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 - ((manh toan) or (tinh toan)) ((thanh bang) OR (thanh ban)) cong dan thanh cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - ((manh toan) OR (tinh toan)) ((thanh bang) OR (thanh ban)) cong dan thanh cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - ((manh toan) or (tinh toan)) ((thanh bang) OR (thanh ban)) cong dan thanh cac".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - ((manh toan) or (tinh toan)) ((thanh bang) OR (thanh ban)) cong dan thanh cac*.