Perhaps you should try some spelling variations:
communications networks » communication networks, telecommunications networks, telecommunications network
a communications » a communication, data communications, a communicative
et developpement » de developpement, le developpement, test development
developpement en » developpement et, developpement des, developpement de
technologies 4 » technologies _
formation der » formation des, formation under, formationen der
4 formation » 1 formation, a formation, 4 formulation
networks et » networks east, networks 1, networks 3
does a » does _

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 formation der does a communications networks et developpement en afrique.*.