Perhaps you should try some spelling variations:
6.2 communication » 3.2 communication, 2.3 communication, 2.7 communication
developpement en » developpement et, developpement des, developpement de
innovation case » innovation based, innovation chapter, innovation center
a developpement » au developpement, de developpement, le developpement
case daten » case data
daten 6.2 » daten 7.2, date 6.2, daten 2.2
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 _ innovation case daten 6.2 communication costs a developpement en afrique.*.