Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
hanh tang » hanh trang, anh tang, hanh mang
cua dang » cua ban
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu sach - hanh tang ((cua cong) or (cua dang)) cong dan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - hanh tang ((cua cong) OR (cua dang)) cong dan than cap.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - hanh tang ((cua cong) or (cua dang)) cong dan than cap*.