Perhaps you should try some spelling variations:
world communication » work communication, wired communications, good communication
communication model » communication media
led developpement » le developpement, leur developpement, de developpement
developpement en » developpement et, developpement des, developpement de
technologies 2 » technologies _, technologies 4
das world » des world, does world, wars world
model led » model land, model law, model listed
3.2 das » 1.2 das, 3.2 data

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information 3.2 das world communication model led developpement en afrique.*.