Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
cong thanh » dong thanh, cong trinh, cong tan
hanh dung » thanh dung, anh dung, hanh dong
cua nhung » va nhung
dung cua » dung luan, dung cho
cong dan » cong san, cong tan, huong dan
phan dau » hang dau

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 dung cua nhung ((cong dan) OR (cong thanh)) ((phan dau) OR (phan tu))~.
• Adding a wildcard symbol may retrieve word variants: hoc hien nhanh - hanh dung cua nhung ((cong dan) or (cong thanh)) ((phan dau) or (phan tu))*.