Perhaps you should try some spelling variations:
information needs » information networks
der communication » de communication, under communication, debt communication
et developpements » et developpement, des developpements, en developpement
developpements de » developpement de, developpement des, developpement du
technologies 2 » technologies _, technologies 4
de afrique » de l'afrique, en afrique, l afrique
needs 2.3 » needs 4.3, needs 2.5, needs 2.8
a et » a set, a net, a bet

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 2.3 der communication a et developpements de afrique.*.