Perhaps you should try some spelling variations:
oral communication » personal communication
de developpement » sme development
developpement de » developpement des, developpement durable
apologien does » apologie des, apologien der
does variation » de variation, der variation, die variation
variation des » variation _, variation 6, variation series
de afrique » de l'afrique, en afrique, l afrique
does oral » does formal, does oil
des does » des doses, der does, des dorfes
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: apologien does variation des does oral communication a de developpement de afrique.*.