Perhaps you should try some spelling variations:
radio communications » radio communication, data communications
du developpement » de developpement, le developpement, et developpement
developpement l » developpement il, developpement la, developpement de
typologies der » typologie der, typologien der, typologie des
variation guns » variation und, variation des, variation due
der variation » de variation, does variation, die variation
does radio » das radio
guns does » tens does
l afrique » en afrique

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

• Adding a wildcard symbol may retrieve word variants: typologies der variation guns does radio communications _ du developpement l afrique.*.