Perhaps you should try some spelling variations:
information networks » information needs
actors communication » actions communication, active communication, networks communication
der developpement » de developpement, des developpements, leur developpement
des afrique » en afrique, de l'afrique
networks 1 » networks _
1 actors » 11 actors, _ actors, 3 actors
a der » _ der, 2 der, 3 der

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

• Adding a wildcard symbol may retrieve word variants: technologies _ information networks 1 actors communication a der developpement des afrique.*.