Perhaps you should try some spelling variations:
person communication » personal communication, personal communications, irsn communication
does developpement » de developpement, des developpements, does development
variation over » variation der, variation notes, variation des
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
des afrique » en afrique, de l'afrique
air person » per person, a person, der person
over air » over ai, other air, over a
a does » 2 does, 4 does, 1 does

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

• Adding a wildcard symbol may retrieve word variants: typologie der variation over air person communication a does developpement des afrique.*.