Perhaps you should try some spelling variations:
tieu sach » chieu sach, dien sach, te sach
hanh mang » nhanh mang, hanh trang, nhanh lang
mang cua » manh cua, dung cua, ban cua
cua dang » cua cong, cua ban
cong san » cong tac
cong tan » cong tac, cong thanh, cong ty
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu sach - hanh mang cua dang ((cong san) or (cong tan)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - hanh mang cua dang ((cong san) OR (cong tan)) toan ban.
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - hanh mang cua dang ((cong san) or (cong tan)) toan ban*.