Perhaps you should try some spelling variations:
6.2 communication » 3.2 communication, 2.3 communication, 2.7 communication
innovation cases » innovation case, innovation based, innovations case
a developpement » au developpement, de developpement, le developpement
technology der » technology does, technology 4ir, technology dlt
der innovation » gender innovation, 2 innovation, 3 innovation
des afrique » en afrique, de l'afrique
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 der innovation cases data 6.2 communication costs a developpement des afrique.*.