Perhaps you should try some spelling variations:
des developpement » des developpements, de developpement, le developpement
communications a » communications _, communications law, communications media
developpement de » developpement des, developpement durable
variation bei » variation des, variation der, variation _
den data » dan data, dn data, open data
bei den » bei der
a des » a der, a das

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 data communications a des developpement de l'afrique.*.