Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
tranh quan » tranh quang, trinh quan, tranh luan
quan thang » quang thang, quan thanh, xuan thang
long dan » long doan, nong dan, long van
cong dan » cong san, cong tan, huong dan
toan tap » toan ban

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 - canh tranh quan thang ((long dan) or (cong dan)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - canh tranh quan thang ((long dan) OR (cong dan)) toan tap.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - canh tranh quan thang ((long dan) or (cong dan)) toan tap*.