Perhaps you should try some spelling variations:
called communication » based communication, scale communication, scales communication
das developpement » des developpements, de developpement, du developpement
developpement de » developpement des, developpement durable
technologies 2 » technologies _, technologies 4
information 3 » information 2
a das » 1 das, 2 das, 3 das
3 so » _ so, 3 co, 3 do

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 so called communication a das developpement de l'afrique.*.