Perhaps you should try some spelling variations:
de communication » mobile communication, online communication
development en » developpement en, development menu, development eco
variation des » variation _, variation 6, variation series
6 variation » 6 variations, _ variation, 2 variation
typology 6 » typology _, typology 4.1
5 source » a source
7 source » _ source, a source
des soe » des soa, des sols, des sous

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: "typology 6 variation des soe de communication ((5 source) OR (7 source)) development en afrique.~".
• Adding a wildcard symbol may retrieve word variants: typology 6 variation des soe de communication ((5 source) OR (7 source)) development en afrique.*.