Perhaps you should try some spelling variations:
6.2 communication » 3.2 communication, 2.3 communication, 2.7 communication
developpement de » developpement des, developpement durable
innovation case » innovation based, innovation chapter, innovation center
a developpement » au developpement, de developpement, le developpement
technology 3 » technology _, technology 1, technology 4
3 innovation » 2 innovation
case data » cases data, base data, use data
data 6.2 » data 2.2, data 6.3, data 1.2
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technology 3 innovation case data 6.2 communication costs a developpement de l'afrique.*.