Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
canh thanh » canh tranh, danh thanh, anh thanh
thanh can » thanh san, thanh van, thanh tan
ho chieu » theo chieu, hoc thieu, doi chieu
can hang » ban hang, van hang, can bang
cong dan » cong san, cong tan, cong dong
than cau » phan cau, than cap, thanh chau
toan cau » toan cao, toan ban, toan tap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - canh thanh can hang ((cong dan) OR (huong dan)) ((than cau) or (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - canh thanh can hang ((cong dan) OR (huong dan)) ((than cau) OR (toan cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - canh thanh can hang ((cong dan) OR (huong dan)) ((than cau) or (toan cau))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - canh thanh can hang ((cong dan) OR (huong dan)) ((than cau) or (toan cau))*.