Perhaps you should try some spelling variations:
communication series » communication services, communication systems, communication skills
rural communication » rural communications, oral communication, moral communication
de developpement » sme development
developpement de » developpement des, developpement durable
variation bei » variation des, variation der, variation _
den rural » do rural, modern rural
series de » series d, series e, series new
bei den » bei der

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

• Adding a wildcard symbol may retrieve word variants: typologies _ variation bei den rural communication series de developpement de l'afrique.*.