Perhaps you should try some spelling variations:
vertical communication » verbal communication, virtual communication, optical communication
communication model » communication media
law developpement » le developpement, au developpement, leur developpement
integration work » integrating world, integration framework, integration 3
developpement de » developpement des, developpement durable
die integration » trade integration
technology die » technologie die, technology does, technology 4ir
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 die integration work _ vertical communication model law developpement de afrique.*.