Perhaps you should try some spelling variations:
oral communication » personal communication
information needs » information networks
der developpement » de developpement, des developpements, leur developpement
developpement de » developpement des, developpement durable
technologies 2 » technologies _, technologies 4
de africa » does africa, de america, use africa
needs 3 » needs _, needs a
3 oral » _ oral, 2 oral, 4 oral
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 2 information needs 3 oral communication a der developpement de africa.*.