Perhaps you should try some spelling variations:
crisis communication » risk communication, mass communication
variation series » education series, action series, edition series
du developpement » de developpement, le developpement, et developpement
communication 6 » communication _, communication a, communication 3
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
series debt » series de
des afrique » en afrique, de l'afrique
6 du » 6 de, 6 do, _ du

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

• Adding a wildcard symbol may retrieve word variants: typologie der variation series debt crisis communication 6 du developpement des afrique.*.