Perhaps you should try some spelling variations:
voice communication » voice communications, mobile communication, device communication
deux developpements » des developpements, de developpement, du developpement
developpements en » developpement en, developpement et, developpements de
technologies et » technologies e, technologies art, technologies bit
et information » get information, ct information, debt information
information pt » information part, information 1, information 1.2

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

• Adding a wildcard symbol may retrieve word variants: technologies et information pt _ voice communication a deux developpements en afrique.*.