Perhaps you should try some spelling variations:
des developpements » deux developpements, de developpement, et developpements
oral communication » personal communication
developpements en » developpement en, developpement et, developpements de
variation wider » variation der, variation des, variation de
des variation » does variation, de variation, der variation
wider den » wider die
den oral » den ort, new oral
typologie » typologies, typology

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

• Adding a wildcard symbol may retrieve word variants: typologie des variation wider den oral communication _ des developpements en afrique.*.