Perhaps you should try some spelling variations:
formal communication » informal communication, oral communication, moral communication
des developpement » des developpements, de developpement, le developpement
variation behn » variation bei, variation des, variation der
des variation » does variation, de variation, der variation
apologie des » l'apologie des, typologie des, apologien der
does formal » loss formal, does formality, des formalen
des afrique » en afrique, de l'afrique
behn does » being does, ban does
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: apologie des variation behn does formal communication a des developpement des afrique.*.