Perhaps you should try some spelling variations:
oral communication » personal communication
das developpement » des developpements, de developpement, du developpement
developpement et » developpement des, developpement de, development east
des variation » does variation, de variation, der variation
variation des » variation _, variation 6, variation series
et afrique » en afrique, l afrique
has oral » has rural, u.s oral, vs oral
des has » des hauts, diets has, des hmsi
a das » 1 das, 2 das, 3 das
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 has oral communication a das developpement et afrique.*.