Perhaps you should try some spelling variations:
3.2 communication » 3 communication, 2.3 communication, de communication
de developpement » sme development
developpement de » developpement des, developpement durable
innovation case » innovation based, innovation chapter, innovation center
de afrique » de l'afrique, en afrique, l afrique
case data » cases data, base data, use data
data 3.2 » data 3.1
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 _ innovation case data 3.2 communication costs de developpement de afrique.*.