Perhaps you should try some spelling variations:
case communication » based communication, scale communication, face communication
de developpement » sme development
developpement de » developpement des, developpement durable
2.2 information » 4.2 information, 2.2.3 information, 2.2 transformation
technology 2.2 » technology _, technology 1, technology 3
information 2 » information 3
costs de » costs _, costs 4, costs a
2 areas » 1 areas, 2 areal, 4 areas

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

• Adding a wildcard symbol may retrieve word variants: technology 2.2 information 2 areas case communication costs de developpement de l'afrique.*.