Perhaps you should try some spelling variations:
oral communication » personal communication
sea developpement » de developpement, le developpement, et developpement
developpement de » developpement des, developpement durable
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
de afrique » de l'afrique, en afrique, l afrique
costs sea » costs a
ex oral » new oral

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: typologie der variation _ ex oral communication costs sea developpement de afrique.*.