Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
cua nhung » va nhung
chu sach » cau sach, thu sach, chuc hach
hanh han » hanh nhan, hanh phan, hanh san
cong tan » cong san, cong thanh, cong ty
cong tac » cong ty
toan cau » toan cao, toan ban, toan tap
han cua » hang cua, nhan cua, than cua

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 ((chu sach) OR (chieu sach)) - hanh han cua nhung ((cong tan) OR (cong tac)) toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu sach) or (chieu sach)) - hanh han cua nhung ((cong tan) OR (cong tac)) toan cau~".
• Adding a wildcard symbol may retrieve word variants: theo ((chu sach) or (chieu sach)) - hanh han cua nhung ((cong tan) OR (cong tac)) toan cau*.