Perhaps you should try some spelling variations:
ai communication » ii communication, i communication, de communication
developpement de » developpement des, developpement durable
apologien die » apologien der, apologia de, apologie des
die variation » de variation, does variation, der variation
variation a » variation _, variation 6, variation 5
go ai » go a
a das » 1 das, 3 das, _ das
2 das » 1 das
a go » a geo, a ngo, a god

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: "apologien die variation a go ai communication ((a das) OR (2 das)) developpement de l'afrique.~".
• Adding a wildcard symbol may retrieve word variants: apologien die variation a go ai communication ((a das) OR (2 das)) developpement de l'afrique.*.