Perhaps you should try some spelling variations:
oral communication » personal communication
de developpement » sme development
developpement de » developpement des, developpement durable
des variation » does variation, de variation, der variation
variation der » variation des, variation bei, variation _
de afrique » de l'afrique, en afrique, l afrique
does oral » does formal, does oil
a de » a die, a der, a des
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 der does oral communication a de developpement de afrique.*.