Perhaps you should try some spelling variations:
device communication » services communication, voice communication, mobile communication
communication model » communication media
led developpement » le developpement, leur developpement, de developpement
3.3 integration » 4.3 integration, 4.1 integration, 2 integration
developpement l » developpement il, developpement la, developpement de
technology 3.3 » technology 3.1, technology 3.2, technology 2.3
model led » model land, model law, model listed
l afrique » en afrique
3 device » 3 devices, _ device, a device

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

• Adding a wildcard symbol may retrieve word variants: technology 3.3 integration 3 3 device communication model led developpement l afrique.*.