Perhaps you should try some spelling variations:
active communication » reactive communication, proactive communication, actions communication
information needs » information networks
der developpement » de developpement, des developpements, leur developpement
developpement de » developpement des, developpement durable
communication 2 » communication _, communication a, communication 3
4.5 active » 3.5 active, 4.2 active, 5.4.5 active
de afrique » de l'afrique, en afrique, l afrique
needs 4.5 » needs 4.3
2 der » _ der

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

• Adding a wildcard symbol may retrieve word variants: technologies _ information needs 4.5 active communication 2 der developpement de afrique.*.