Perhaps you should try some spelling variations:
personal communication » interpersonal communication
developpement la » developpement de, developpement et, developpement du
a developpement » au developpement, de developpement, le developpement
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
la afrique » l afrique, la fabrique, en afrique
a a » a la

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

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