Perhaps you should try some spelling variations:
data communication » data communications
du developpement » de developpement, le developpement, et developpement
developpement en » developpement et, developpement des, developpement de
de variation » der variation, die variation, does variation
apology de » apologia de, apology mea, apology _
6 de » 6 die, 6 der, _ de
_ dr » _ do, _ r, _ d
a du » a d, a de, a u

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

• If you are trying to use Boolean operators, they must be ALL CAPS: apology de variation ((6 de) OR (_ dr)) data communication a du developpement en afrique.~.
• Adding a wildcard symbol may retrieve word variants: apology de variation ((6 de) or (_ dr)) data communication a du developpement en afrique.*.