Perhaps you should try some spelling variations:
das developpement » des developpements, de developpement, du developpement
communications 3 » communications _, communications a, communications 5
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
3 das » 1 das, 2 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 3 das developpement de l'afrique.*.