Perhaps you should try some spelling variations:
optical communicating » optical communications, optical communication, optic communication
communicating model » communication model, communicating under, communication modes
technologien am » technologien im, technologien als, technologie im
d developpement » de developpement, du developpement, le developpement
am integration » tam integration, crm integration, shm integration
des afrique » en afrique, de l'afrique
1 optical » 12 optical, 14 optical, _ optical
model d » model du, modell d, model 1

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

• Adding a wildcard symbol may retrieve word variants: technologien am integration 3 1 optical communicating model d developpement des afrique.*.