Perhaps you should try some spelling variations:
vertical communication » verbal communication, virtual communication, optical communication
communication model » communication media
due developpement » de developpement, du developpement, le developpement
4ir integration » zur integration, der integration, 4 integration
developpement l » developpement il, developpement la, developpement de
technology 4ir » technology 4, technology 4.1, technology 4.2
1 vertical » _ vertical, 6 vertical, 2 vertical
model due » model du, model deep, model d
l afrique » en afrique

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 vertical communication model due developpement l afrique.*.