Perhaps you should try some spelling variations:
developpement durable » developpement de
communication costly » communication costs, communication costa, communications costs
than developpement » au developpement, en developpement, un developpement
et communication » et communicatione, get communication, debt communication
typologien der » typologie der, typologie des, apologien der
der variation » de variation, does variation, die variation
variation a » variation _, variation 6, variation 5
costly than » costly trade
der et » der eg, mer et, der ec
a der » _ der, 2 der, 3 der

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

• Adding a wildcard symbol may retrieve word variants: typologien der variation a der et communication costly than developpement durable afrique.*.