Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
cho chinh » chon chinh, che chinh, cuoc chinh
dang cong » dung cong
thanh cau » thanh chau, thanh mau, nhanh cau
trang va » hang va
tran van » luan van
hanh mau » thanh mau, anh mau, hanh ma

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 - hanh ((trang va) OR (tran van)) dang cong thanh ((thanh cau) OR (hanh mau))~.
• Adding a wildcard symbol may retrieve word variants: cho chinh sach - hanh ((trang va) or (tran van)) dang cong thanh ((thanh cau) or (hanh mau))*.