Perhaps you should try some spelling variations:
communication network » communication networks, communications network, communications networks
data communication » data communications
do developpement » de developpement, du developpement, le developpement
developpement en » developpement et, developpement des, developpement de
technologies a » technologies _, technologies 4, technologies 2
a information » 2 information, 1 information
about data » about dark
network do » network dmz, network _, network 3
3.2 about » 2.2 about, 3.1 about, 1.4 about

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: technologies a information 3.2 about data communication network do developpement en afrique.*.