Perhaps you should try some spelling variations:
oral communication » personal communication
de developpement » sme development
typologie does » typologie des, typologie der, typologie cices
does variation » de variation, der variation, die variation
variation dem » variation des, variation der, variation de
des afrique » en afrique, de l'afrique
dem ddr » der ddr, dem der, den ddr
a de » a die, a der, a des

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: typologie does variation dem ddr oral communication a de developpement des afrique.*.