Perhaps you should try some spelling variations:
oral communication » personal communication
communication 1.1 » communication 4.1, communication 7.1, communication 1.3
au developpement » du developpement, de developpement, le developpement
developpement de » developpement des, developpement durable
des variation » does variation, de variation, der variation
variation des » variation _, variation 6, variation series
does oral » does formal, does oil
des does » des doses, der does, des dorfes
1.1 au » 1.1 ai, 5.1 au
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 des does oral communication 1.1 au developpement de l'afrique.*.