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
des variation » does variation, de variation, der variation
variation ban » variation bei, variation a, variation von
apologie des » l'apologie des, typologie des, apologien der
de afrique » de l'afrique, en afrique, l afrique
does oral » does formal, does oil
ban does » behn does, plan does, far 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 ban does oral communication a des developpements de afrique.*.