Perhaps you should try some spelling variations:
hien sach » dien sach, kien sach, thien hach
hanh tang » hanh trang, anh tang, hanh mang
cua khong » hua khong, cua phuong, cua thuong
thanh ban » thanh san, thanh van, thanh bac
tang cua » mang cua, hang cua, tang luan
cong dan » cong tan, cong dong, cong tac
cong san » cong tac

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien sach - hanh tang cua khong ((((cong dan) or (cong san))) or (huong dan)) thanh ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien sach - hanh tang cua khong ((((cong dan) OR (cong san))) OR (huong dan)) thanh ban.
• Adding a wildcard symbol may retrieve word variants: hoc hien sach - hanh tang cua khong ((((cong dan) or (cong san))) or (huong dan)) thanh ban*.