Perhaps you should try some spelling variations:
actors communication » actions communication, active communication, networks communication
information speech » information speed, information search, information space
developpement de » developpement des, developpement durable
d developpement » de developpement, du developpement, le developpement
press actors » press actor, process factors, stress factors
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: technologies _ information speech press actors communication a d developpement de afrique.*.