Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hoc chinh » hoan chinh, hoc sinh, hoc kinh
tinh bang » tinh sang, tinh lang, tinh quang
cua nhung » va nhung
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap
anh son » anh dong, tinh son

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 - ((anh son) or (tinh bang)) cua nhung cong dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chinh sach - ((anh son) OR (tinh bang)) cua nhung cong dan than cau.
• Adding a wildcard symbol may retrieve word variants: hoc chinh sach - ((anh son) or (tinh bang)) cua nhung cong dan than cau*.