Perhaps you should try some spelling variations:
developpement en » developpement et, developpement des, developpement de
3 communication » 4 communication, de communication, data communication
3 developpement » de developpement, le developpement, et developpement
der variation » de variation, does variation, die variation
variation des » variation _, variation 6, variation series
figures 3 » figures _, figures 1, figures a
media 3 » media _, media 1, media 4
theorie » theories

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: theorie der variation des figures 3 communication media 3 developpement en afrique.*.