Perhaps you should try some spelling variations:
radio communications » radio communication, data communications
communications a » communications _, communications law, communications media
de developpement » sme development
developpement du » developpement de, developpement des, developpement et
variation over » variation der, variation notes, variation des
typologie de » typologie des, typologie der, typologien der
de variation » der variation, die variation, does variation
du afrique » en afrique, l afrique, de l'afrique
de radio » dm radio, desi radio, mode radio
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 de variation over de radio communications a de developpement du afrique.*.