Perhaps you should try some spelling variations:
vertical communication » verbal communication, virtual communication, optical communication
communication modell » communication model, communications models, communication modes
integration work » integrating world, integration framework, integration 3
developpement en » developpement et, developpement des, developpement de
2 developpement » de developpement, le developpement, et developpement
4 integration » 3 integration, 2 integration, 4.1 integration
technology 4 » technology _, technology 1, technology 3
modell 2 » model 2, modell 1, modell 4

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

• Adding a wildcard symbol may retrieve word variants: technology 4 integration work _ vertical communication modell 2 developpement en afrique.*.