Perhaps you should try some spelling variations:
communication system » communication systems, telecommunication system, communication series
data communication » data communications
technologies die » technologies de, technologie die, technologies bit
et developpement » de developpement, le developpement, test development
des africa » does africa, yes africa, de africa
system et » systeme et, system e, system eu
die data » die daten, life data, file data

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

• Adding a wildcard symbol may retrieve word variants: technologies die transformation _ die data communication system et developpement des africa.*.