Perhaps you should try some spelling variations:
communication model » communication media
information needed » information needs, information speed, transformation needed
le developpement » de developpement, sme development
developpement en » developpement et, developpement des, developpement de
technologies 2 » technologies _, technologies 4
needed a » needed _, need a
model le » model led, model law, model 1

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information needed a risk communication model le developpement en afrique.*.