Perhaps you should try some spelling variations:
6.2 communication » 3.2 communication, 2.3 communication, 2.7 communication
innovation notes » innovation nodes, innovation node, innovation contest
developpement en » developpement et, developpement des, developpement de
technological 2 » technological _, technological 3.5, technological art
4 developpement » de developpement, le developpement, et developpement
notes daten » notes data
daten 6.2 » daten 7.2, date 6.2, daten 2.2
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: technological 2 innovation notes daten 6.2 communication costs 4 developpement en afrique.*.