Perhaps you should try some spelling variations:
personen communication » personal communication, personal communications, prone communication
does developpement » de developpement, des developpements, does development
variation over » variation der, variation notes, variation des
typologie die » typologie des, typologie der, theologie die
die variation » de variation, does variation, der variation
der personen » der personalen, per person, und personen
des afrique » en afrique, de l'afrique
over der » cover der, over de, over air
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 die variation over der personen communication a does developpement des afrique.*.