Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
thong cua » thong quan, thong tu, huong cua
doanh cua » doanh luan
dung cong » dung trong
nhan cua » nhat cua, nhan luc, nhan su
cong dan » cong san, cong tan, huong dan
dan van » dang van, doan van, dao van

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 ((((thong cua) OR (nhan cua))) OR (doanh cua)) dung cong dan van ban~.
• Adding a wildcard symbol may retrieve word variants: hoc hien nhanh - hanh ((((thong cua) or (nhan cua))) or (doanh cua)) dung cong dan van ban*.