Perhaps you should try some spelling variations:
optic communication » optical communications, public communication, device communication
does developpement » de developpement, des developpements, does development
ideologien der » ideologie der, ideologie des, ideologie de
der variation » de variation, does variation, die variation
des afrique » en afrique, de l'afrique
der optic » der option, der opec, der optes
a does » 2 does, 4 does, 1 does

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

• Adding a wildcard symbol may retrieve word variants: ideologien der variation _ der optic communication a does developpement des afrique.*.