Perhaps you should try some spelling variations:
vertical communication » verbal communication, virtual communication, optical communication
communication model » communication media
deux developpements » des developpements, de developpement, du developpement
developpements de » developpement de, developpement des, developpement du
4ir integration » zur integration, der integration, 4 integration
technology 4ir » technology 4, technology 4.1, technology 4.2
model deux » model deep, model du, model due
de afrique » de l'afrique, en afrique, l 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 _ vertical communication model deux developpements de afrique.*.