Perhaps you should try some spelling variations:
option communication » optic communication, actions communication, optical communication
de developpement » sme development
typologien der » typologie der, typologie des, apologien der
der variation » de variation, does variation, die variation
des afrique » en afrique, de l'afrique
der option » der optionen, der operation
a de » a die, a der, a des

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

• Adding a wildcard symbol may retrieve word variants: typologien der variation _ der option communication a de developpement des afrique.*.