Perhaps you should try some spelling variations:
oral communication » personal communication
des developpement » des developpements, de developpement, le 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
its oral » its oil, u.s oral, vs oral
des its » des ias, des ids, des faits
a des » a der, a 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 its oral communication a des developpement et afrique.*.