Perhaps you should try some spelling variations:
cuong dung » tuong duong, ung dung, thong dung
cho chinh » chon chinh, che chinh, cuoc chinh
trinh vat » trinh van, trinh luat, sinh vat
tranh va » tranh van, trang va, trinh va
dung dan » dung dat, dung san, tung dan
chan cau » phan cau, can cau, chinh cau
ca cau » cua cau, cac cau, can cau

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

• If you are trying to use Boolean operators, they must be ALL CAPS: cho chinh sach - canh ((tranh va) OR (trinh vat)) cuong dung dan ((chan cau) OR (ca cau))~.
• Adding a wildcard symbol may retrieve word variants: cho chinh sach - canh ((tranh va) or (trinh vat)) cuong dung dan ((chan cau) or (ca cau))*.