Perhaps you should try some spelling variations:
1 transformation » 4 transformation, die transformation, der transformation
transformation a » transformation _
developpement en » developpement et, developpement des, developpement de
technologies 1 » technologies _, technologies 4, technologies 2
2 risk » 3 risk, 4 risk
a des » a der
a das » 1 das, 2 das, 3 das

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies 1 transformation a 2 risk communication ((a des) OR (a das)) developpement en afrique.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "technologies 1 transformation a 2 risk communication ((a des) OR (a das)) developpement en afrique.".
• Adding a wildcard symbol may retrieve word variants: technologies 1 transformation a 2 risk communication ((a des) OR (a das)) developpement en afrique.*.