Perhaps you should try some spelling variations:
theo chiet » theo chieu, thep thiet
chiet tach » chieu sach
hanh tranh » canh tranh, hanh trang, lanh tranh
hanh trinh » canh tranh, hanh chinh
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
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 chiet tach - ((hanh tranh) OR (hanh trinh)) va nhung ((cong dan) or (cong tan)) than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chiet tach - ((hanh tranh) OR (hanh trinh)) va nhung ((cong dan) OR (cong tan)) than cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chiet tach - ((hanh tranh) OR (hanh trinh)) va nhung ((cong dan) or (cong tan)) than cap".
• Adding a wildcard symbol may retrieve word variants: theo chiet tach - ((hanh tranh) OR (hanh trinh)) va nhung ((cong dan) or (cong tan)) than cap*.