Perhaps you should try some spelling variations:
oral communication » personal communication
des developpement » des developpements, de developpement, le developpement
developpement de » developpement des, developpement durable
variation among » starvation among, formation among, variation von
apologien does » apologie des, apologien der
does variation » de variation, der variation, die variation
among does » among boys, among les, among donors
de afrique » de l'afrique, en afrique, l afrique
does oral » does formal, does oil
a des » a der, a das

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

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