Perhaps you should try some spelling variations:
convinced communication » advanced communication, coordinated communication, nonviolent communication
farmers convinced » farmers confronted
set developpement » et developpement, de developpement, le developpement
developpement l » developpement il, developpement la, developpement de
des variation » does variation, de variation, der variation
variation des » variation _, variation 6, variation series
typology des » typologie des, typologie der, typology _
des farmers » odds farmers, do farmers, des fahrers
l afrique » en afrique

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

• Adding a wildcard symbol may retrieve word variants: typology des variation des farmers convinced communication _ set developpement l afrique.*.