Perhaps you should try some spelling variations:
thanh khung » thanh hung, thanh chuong, thanh phuong
hoc chinh » hoan chinh, hoc sinh, hoc kinh
khung cua » chung cua, khung luan, chung cu
cua tong » cua cong, cua dong, cua nong
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
than cau » toan cau, phan cau, 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: hoc chinh sach - thanh khung cua tong ((cong tan) or (cong san)) than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chinh sach - thanh khung cua tong ((cong tan) OR (cong san)) than cau.
• Adding a wildcard symbol may retrieve word variants: hoc chinh sach - thanh khung cua tong ((cong tan) or (cong san)) than cau*.