Perhaps you should try some spelling variations:
voice communication » voice communications, mobile communication, device communication
leur developpement » le developpement, deux developpements, de developpement
information needs » information networks
aids information » chandos information, series information
developpement de » developpement des, developpement durable
technology aids » technology a, technology age, technology asia
needs more » need more, needed more, needs one
more voice » more voices, moral voice, more choice
de africa » does africa, de america, use africa

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

• Adding a wildcard symbol may retrieve word variants: technology aids information needs more voice communication a leur developpement de africa.*.