Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung thanh » truong thanh
thanh dang » thanh hang, thanh dan, thanh dong
hoc chinh » hoan chinh, hoc sinh, hoc kinh
dang cong » dung cong
khoan cam » khoa cam, khoan va, phan cam
cong san » cong tac
khan cap » khan ap, than cap, phan cac

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 trung thanh dang cong san ((khan cap) or (khoan cam))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chinh sach - thanh trung thanh dang cong san ((khan cap) OR (khoan cam)).
• Adding a wildcard symbol may retrieve word variants: hoc chinh sach - thanh trung thanh dang cong san ((khan cap) or (khoan cam))*.