Perhaps you should try some spelling variations:
developpement de » developpement des, developpement durable
technologien i » technologien im, technologien _, technologien 1
informal 34 » informal q4, informal 8.4, informal _
i informal » _ informal, 3 informal, 8 informal
der mobile » der mobilen, der mobil, does mobile
de afrique » de l'afrique, en afrique, l afrique
34 der » 3.4 der, 24 der, 34 de
a auf » i auf, b auf
a au » a bau, a aus, a a

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "technologien i informal 34 der mobile communication ((a au) OR (a auf)) developpement de afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologien i informal 34 der mobile communication ((a au) OR (a auf)) developpement de afrique.*.