Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
cong thanh » dong thanh, cong trinh, cong tan
hoc chieu » hoc thieu, ho chieu, hoc hien
hanh mang » nhanh mang, hanh trang, nhanh lang
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
chat ban » nhat ban, chat ran, cua ban
mang va » mang vua, hang va, bang va
va dung » van dung, va duong, vat dung

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

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