Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
quang dung » quang trung, ung dung, cuong dung
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cao » toan cao, thai cao, than cap

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 (chieu sach)) - hanh trinh ((cua dung) or (quang dung)) cong dan than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((dieu hanh) OR (chieu sach)) - hanh trinh ((cua dung) OR (quang dung)) cong dan than cao.
• Adding a wildcard symbol may retrieve word variants: ho ((dieu hanh) or (chieu sach)) - hanh trinh ((cua dung) or (quang dung)) cong dan than cao*.