Perhaps you should try some spelling variations:
personal communication » interpersonal communication
information needs » information networks
der developpement » de developpement, des developpements, leur developpement
communication 3 » communication _, communication a
technologies 4 » technologies _
4 information » 2 information, 1 information
3 personal » a personal, 1 personal, 4 personal
des africa » does africa, yes africa, de africa
needs 3 » needs _, needs a
3 der » _ der, 2 der

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information needs 3 personal communication 3 der developpement des africa.*.