Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
hien nhanh » hien hanh, tien thanh, dien 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, ca 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: hoc ((hien nhanh) OR (thien thanh)) - hanh mang cua nhung cong dan ((chan cau) OR (can cau))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien nhanh) OR (thien thanh)) - hanh mang cua nhung cong dan ((chan cau) or (can cau))~".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien nhanh) OR (thien thanh)) - hanh mang cua nhung cong dan ((chan cau) or (can cau))*.