Perhaps you should try some spelling variations:
mass communications » mass communication, data communications, crisis communications
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
does variation » de variation, der variation, die variation
variation bei » variation des, variation der, variation _
dem mass » term mass, dem mis
bei dem » bei der, bei den

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (typologie OR typology) does variation bei dem mass communications _ de developpement en afrique.~.
• Adding a wildcard symbol may retrieve word variants: (typologie or typology) does variation bei dem mass communications _ de developpement en afrique.*.