Perhaps you should try some spelling variations:
oral communication » personal communication
des developpements » deux developpements, de developpement, et developpements
developpements de » developpement de, developpement des, developpement du
variation behn » variation bei, variation des, variation der
apologien der » typologien der, apologie des, ideologien der
der variation » de variation, does variation, die variation
de afrique » de l'afrique, en afrique, l afrique
behn does » being does, ban does
does oral » does formal, does oil
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: apologien der variation behn does oral communication a des developpements de afrique.*.