Perhaps you should try some spelling variations:
device communication » services communication, voice communication, mobile communication
communication model » communication media
integrating data » integration data, integrated data, integrating a
developpement en » developpement et, developpement des, developpement de
a developpement » au developpement, de developpement, le developpement
4 integrating » _ integrating
technology 4 » technology _, technology 1, technology 3
4 device » _ device, a device
model a » model 1

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

• Adding a wildcard symbol may retrieve word variants: technology 4 integrating data 4 device communication model a developpement en afrique.*.