Perhaps you should try some spelling variations:
developpement durable » developpement de
au developpement » du developpement, de developpement, le developpement
communication 3 » communication _, communication a
technologien i » technologien im, technologien _, technologien 1
i informal » _ informal, 3 informal, 8 informal
der mobile » der mobilen, der mobil, does mobile
3 au » 3 auf, 3 a, 3 zu

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

• Adding a wildcard symbol may retrieve word variants: technologien i informal _ der mobile communication 3 au developpement durable afrique.*.