Perhaps you should try some spelling variations:
world communication » work communication, wired communications, good communication
technologies 3 » technologies _, technologies 4, technologies 2
development en » developpement en, development menu, development eco
3 innovation » 2 innovation
1 eds » _ eds, j eds
c eds » _ eds, j eds

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 3 innovation ((1 eds) OR (c eds)) world communication _ gas development en afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies 3 innovation ((1 eds) OR (c eds)) world communication _ gas development en afrique.*.