Perhaps you should try some spelling variations:
tieu sach » chieu sach, dien sach, te sach
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
dong cong » duong cong, dung cong, dang cong
tinh cua » trinh cua, sinh cua, tinh chat
cua dong » chua dong, cua cong, cua dang
cong san » cong tac
toan cau » toan cao, toan tap
toan tai » toan tap, doanh tai, toan cao
toan ban » van ban

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: theo tieu sach - hanh tinh cua dong cong san ((((toan cau) OR (toan tai))) OR (toan ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu sach - hanh tinh cua dong cong san ((((toan cau) OR (toan tai))) or (toan ban))~".
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - hanh tinh cua dong cong san ((((toan cau) OR (toan tai))) or (toan ban))*.