Perhaps you should try some spelling variations:
2.1 communication » 2.14 communication, 2.3 communication, 2.7 communication
information some » information source, information stored, information space
de developpement » sme development
developpement de » developpement des, developpement durable
de afrique » de l'afrique, en afrique, l afrique
case 2.1 » cases 2.1, case 4.1, case 2.3
costs de » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technology _ information some case 2.1 communication costs de developpement de afrique.*.