Perhaps you should try some spelling variations:
radio communications » radio communication, data communications
des developpements » deux developpements, de developpement, et developpements
developpements de » developpement de, developpement des, developpement du
typologie does » typologie des, typologie der, typologie cices
does variation » de variation, der variation, die variation
variation over » variation der, variation notes, variation des
desi radio » das radio
de afrique » de l'afrique, en afrique, l afrique
over desi » over de

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

• Adding a wildcard symbol may retrieve word variants: typologie does variation over desi radio communications _ des developpements de afrique.*.