Perhaps you should try some spelling variations:
chiet tach » chieu sach
hieu nganh » vien nganh, hiem ngan, hieu manh
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
dung cong » dung trong
tinh cua » trinh cua, sinh cua, tinh chat
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, cong tan, huong dan
dan van » dang van, doan van, dao van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((((dieu hanh) or (hieu nganh))) or (chiet tach)) - hanh tinh cua dung cong dan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((((dieu hanh) OR (hieu nganh))) OR (chiet tach)) - hanh tinh cua dung cong dan van ban.
• Adding a wildcard symbol may retrieve word variants: ho ((((dieu hanh) or (hieu nganh))) or (chiet tach)) - hanh tinh cua dung cong dan van ban*.