Perhaps you should try some spelling variations:
device communication » services communication, voice communication, mobile communication
de developpement » sme development
developpement et » developpement des, developpement de, development east
theologie die » theologie der, theologie des, theologie im
die variation » de variation, does variation, der variation
et afrique » en afrique, l afrique
4 debt » 4 debats
3 debt » 83 debt, 2.3 debt
a de » a die, a der, a des

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: "theologie die variation ((4 debt) OR (3 debt)) device communication a de developpement et afrique.~".
• Adding a wildcard symbol may retrieve word variants: theologie die variation ((4 debt) OR (3 debt)) device communication a de developpement et afrique.*.