Perhaps you should try some spelling variations:
communication model » communication media
voice communication » voice communications, mobile communication, device communication
developpement en » developpement et, developpement des, developpement de
a developpement » au developpement, de developpement, le developpement
3 integrating » _ integrating, 4 integrating, 6 integrating
integrating a » integrating _, integrating human
technology 3 » technology _, technology 1, technology 4
a voice » _ voice
model a » model 1
a a » a la

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

• Adding a wildcard symbol may retrieve word variants: technology 3 integrating a a voice communication model a developpement en afrique.*.