Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
cua thong » cua thuong, cua khong, cua tong
ho chieu » theo chieu, hoc thieu, doi chieu
canh van » can van, cach van, canh dan
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
toan cau » toan cao, toan ban, toan tap
anh van » anh va, thanh van, doanh van

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 van) or (anh van)) cua thong ((cong dan) OR (cong san)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - ((canh van) OR (anh van)) cua thong ((cong dan) OR (cong san)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - ((canh van) or (anh van)) cua thong ((cong dan) OR (cong san)) toan cau".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - ((canh van) or (anh van)) cua thong ((cong dan) OR (cong san)) toan cau*.