Perhaps you should try some spelling variations:
optical communication » optical communications, optic communication, political communication
communication model » communication media
4ir integration » zur integration, der integration, 4 integration
d developpement » de developpement, du developpement, le developpement
developpement l » developpement il, developpement la, developpement de
technology 4ir » technology 4, technology 4.1, technology 4.2
1 optical » 12 optical, 14 optical, _ optical
l afrique » en afrique
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: technology 4ir integration 3 1 optical communication model d developpement l afrique.*.