Perhaps you should try some spelling variations:
1.2 communication » 3.2 communication, 6.2 communication, 1.1 communication
developpement de » developpement des, developpement durable
innovation case » innovation based, innovation chapter, innovation center
4 developpement » de developpement, le developpement, et developpement
de afrique » de l'afrique, en afrique, l afrique
case data » cases data, base data, use data
data 1.2 » data 2.2, data 2.3, data 2.1
costs 4 » costs _, costs a, costs 4.2

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 1.2 communication costs 4 developpement de afrique.*.