Perhaps you should try some spelling variations:
personal communication » interpersonal communication
developpement de » developpement des, developpement durable
variation among » starvation among, formation among, variation von
typologies de » typologien der, typologies _, typologie des
de variation » der variation, die variation, does variation
der personal » der personalen, der personen, der person
de afrique » de l'afrique, en afrique, l afrique
among der » among older, among eu, among di

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

• Adding a wildcard symbol may retrieve word variants: typologies de variation among der personal communication media _ developpement de afrique.*.