Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
cho chinh » chon chinh, che chinh, cuoc chinh
tranh cua » doanh cua, manh cua
cua trong » cua truong, cua trung, qua trong
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
tuan tai » toan tai, quan tai, tan tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((cho chinh) or (hanh chinh)) sach - hanh tranh cua trong ((cong dan) OR (cong tan)) tuan tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((cho chinh) OR (hanh chinh)) sach - hanh tranh cua trong ((cong dan) OR (cong tan)) tuan tai.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((cho chinh) or (hanh chinh)) sach - hanh tranh cua trong ((cong dan) OR (cong tan)) tuan tai".
• Adding a wildcard symbol may retrieve word variants: ((cho chinh) or (hanh chinh)) sach - hanh tranh cua trong ((cong dan) OR (cong tan)) tuan tai*.