Perhaps you should try some spelling variations:
oral communication » personal communication
communication 2.1 » communication 22.1, communications 2.1, communication 2.4
eu developpement » et developpement, du developpement, au developpement
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
variation ban » variation bei, variation a, variation von
des afrique » en afrique, de l'afrique
does oral » does formal, does oil
ban does » behn does, plan does, far 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 ban does oral communication 2.1 eu developpement des afrique.*.