Perhaps you should try some spelling variations:
chiet tach » chieu sach
thanh tung » thanh cong
tung luan » dung luan, tang luan, tong luan
luan bang » luan nang, luan ban, luan tang
ho chiet » ho chieu, ho thiet, hoc thiet
cong dan » cong tan, huong dan, cong dong
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: ho chiet tach - thanh tung luan bang ((cong dan) or (cong san)) van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - thanh tung luan bang ((cong dan) OR (cong san)) van ban.
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - thanh tung luan bang ((cong dan) or (cong san)) van ban*.