Perhaps you should try some spelling variations:
optic communication » optical communications, public communication, device communication
does developpement » de developpement, des developpements, does development
communication 2 » communication _, communication a, communication 3
typologie de » typologie des, typologie der, typologien der
de variation » der variation, die variation, does variation
variation 3 » variation _, variation 6, variation 5
des afrique » en afrique, de l'afrique
der optic » der option, der opec, der optes
2 does » 4 does
3 der » _ der, 2 der

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

• Adding a wildcard symbol may retrieve word variants: typologie de variation 3 der optic communication 2 does developpement des afrique.*.