Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tran » thanh trang, thanh tra, thanh tuan
thanh toan » thanh hoa, thanh san, tinh toan
doi chieu » doc hieu, doi chi, ho chieu
song cong » cong cong, tong cong, song dong
dan than » dan chan, ban than, van than
than tap » toan tap, han tap, phan tap

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 - ((thanh tran) OR (thanh toan)) nang ((song cong) or (song hong)) dan than tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - ((thanh tran) OR (thanh toan)) nang ((song cong) OR (song hong)) dan than tap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - ((thanh tran) OR (thanh toan)) nang ((song cong) or (song hong)) dan than tap*".