Perhaps you should try some spelling variations:
oral communication » personal communication
de developpement » sme development
developpement l » developpement il, developpement la, developpement de
des variation » does variation, de variation, der variation
variation dem » variation des, variation der, variation de
l afrique » en afrique
dem ddr » der ddr, dem der, den ddr
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 dem ddr oral communication a de developpement l afrique.*.