Perhaps you should try some spelling variations:
when communication » where communication, open communication, sign communication
das developpement » des developpements, de developpement, du developpement
based innovation » und innovation
developpement de » developpement des, developpement durable
innovation 3 » innovation 1, innovation 4
de afrique » de l'afrique, en afrique, l afrique
das when » das wesen, bars when, bias when
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: technology based innovation 3 das when communication _ das developpement de afrique.*.