Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
nhung cong » dung cong, thong cong, hang cong
hanh mang » nhanh mang, hanh trang, nhanh lang
cua nhung » va nhung
mang cua » manh cua, dung cua, ban cua
cong dan » cong san, cong tan, huong dan
chan cau » phan cau, chinh cau, nhanh cau
can cau » van cau, ban cau, cac cau
ca cau » cua cau, cac cau, ca cac

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: hoc hien nhanh - hanh mang cua nhung cong dan ((chan cau) OR (((can cau) OR (ca cau))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien nhanh - hanh mang cua nhung cong dan ((chan cau) or (((can cau) OR (ca cau))))~".
• Adding a wildcard symbol may retrieve word variants: hoc hien nhanh - hanh mang cua nhung cong dan ((chan cau) or (((can cau) OR (ca cau))))*.