Perhaps you should try some spelling variations:
particle communication » parte communication, partie communications, active communication
information needs » information networks
de developpement » sme development
developpement de » developpement des, developpement durable
communication 3 » communication _, communication a
4.5 particle » 4.2 particle, 3.2 particle, 4 particle
de afrique » de l'afrique, en afrique, l afrique
needs 4.5 » needs 4.3
3 de » 3 die, 3 der, 3 des

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 particle communication 3 de developpement de afrique.*.