Perhaps you should try some spelling variations:
des developpements » deux developpements, de developpement, et developpements
information needs » information networks
den communication » open communication, lean communication, when communication
developpements l » developpements de, developpement il, developpement la
needs 2.3 » needs 4.3, needs 2.5, needs 2.8
l afrique » en afrique
2.3 den » 2.3 der, 2.3 de, 1.3 den
a des » a der, a das

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

• Adding a wildcard symbol may retrieve word variants: technologies _ information needs 2.3 den communication a des developpements l afrique.*.