Perhaps you should try some spelling variations:
mobile communications » mobile communication
communications et » communication et, communications pt, communications en
du developpement » de developpement, le developpement, et developpement
developpement en » developpement et, developpement des, developpement de
variation over » variation der, variation notes, variation des
ideologie die » ideologie de, ideologie der, ideologie des
die variation » de variation, does variation, der variation
air mobile » afar mobile, mail mobile, a mobile
over air » over ai, other air, over a
et du » et de

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

• Adding a wildcard symbol may retrieve word variants: ideologie die variation over air mobile communications et du developpement en afrique.*.