Perhaps you should try some spelling variations:
developpement en » developpement et, developpement des, developpement de
technologies 2 » technologies _, technologies 4
information a » information age, information about
de data » e data, wide data, de datos
5 aut » 5 att, 5 auf
a de » a die, a der, a des
5 au » 5 auf, 5 a, 5 zu

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: "technologies 2 information a de data communications ((5 au) OR (5 aut)) developpement en afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies 2 information a de data communications ((5 au) OR (5 aut)) developpement en afrique.*.