Perhaps you should try some spelling variations:
hieu sach » chieu sach, hieu cach, dien sach
hanh tang » hanh trang, anh tang, hanh mang
dung cong » dung trong
thanh hau » thanh chau, thanh hai, thanh mau
doc hieu » toc thieu, hoc thieu, hoc hien
tang cua » mang cua, hang cua, tang luan
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, cong tan, huong dan
thanh ha » thanh hoa, thanh hai, nhanh ha
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu sach - hanh tang cua dung cong dan ((((thanh hau) or (thanh ha))) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu sach - hanh tang cua dung cong dan ((((thanh hau) OR (thanh ha))) OR (phan cau)).
• Adding a wildcard symbol may retrieve word variants: doc hieu sach - hanh tang cua dung cong dan ((((thanh hau) or (thanh ha))) or (phan cau))*.