Perhaps you should try some spelling variations:
radio communications » radio communication, data communications
des developpement » des developpements, de developpement, le developpement
communications a » communications _, communications law, communications media
variation over » variation der, variation notes, variation des
typologie die » typologie des, typologie der, theologie die
die variation » de variation, does variation, der variation
des afrique » en afrique, de l'afrique
does radio » das radio
over does » cover does, der does, over de
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: typologie die variation over does radio communications a des developpement des afrique.*.