Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu sang, chieu xanh
canh manh » lanh manh, canh tranh, cach mang
manh cua » doanh cua, ban cua
cua hang » cua dang, cua nhung, cua cong
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
toan cau » toan cao, toan ban, toan tap

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

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