Perhaps you should try some spelling variations:
income kommunikation » interne kommunikation, online kommunikation, image kommunikation
net developpement » et developpement, de developpement, le developpement
developpement en » developpement et, developpement des, developpement de
farmers income » farmer incomes, farm income
how variation » how valuation, does variation, four variation
typology how » typology from, typology _, typology 4.1
variation a » variation _, variation 6, variation 5
a farmers » a farmer's, _ farmers, 5 farmers

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

• Adding a wildcard symbol may retrieve word variants: typology how variation a farmers income kommunikation _ net developpement en afrique.*.