Perhaps you should try some spelling variations:
personal communication » interpersonal communication
des developpement » des developpements, de developpement, le developpement
developpement de » developpement des, developpement durable
roles personal » roles persons, names personal, loans personal
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
de afrique » de l'afrique, en afrique, l afrique
a des » a der, a das

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

• Adding a wildcard symbol may retrieve word variants: typologie der variation _ roles personal communication a des developpement de afrique.*.