Perhaps you should try some spelling variations:
device communication » services communication, voice communication, mobile communication
technologies de » technologies _, technologies 4, technologies 2
information 2.3 » information 12.3, information 1.3, information 2.2
de information » die information, de informacion, e information
does device » loss device, does services, types device
des afrique » en afrique, de l'afrique
2.3 does » 12.3 does, 2.4 does, 2.6 does

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

• Adding a wildcard symbol may retrieve word variants: technologies de information 2.3 does device communication media _ developpement des afrique.*.