Perhaps you should try some spelling variations:
income kommunikation » interne kommunikation, online kommunikation, image kommunikation
set developpement » et developpement, de developpement, le developpement
developpement l » developpement il, developpement la, developpement de
farmers income » farmer incomes, farm income
der variation » de variation, does variation, die variation
typology der » typologie der, typologien der, typologie des
l afrique » en afrique
und set » und seit, fund set, und seht

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

• Adding a wildcard symbol may retrieve word variants: typology der variation _ farmers income kommunikation und set developpement l afrique.*.