Perhaps you should try some spelling variations:
developpement durable » developpement de
site developpement » site development, de developpement, le developpement
technologies used » technologies based, technology used, technologies _
used innovation » user innovation, use innovation, based innovation
communication 1 » communication _, communication a, communication 3
das written » data written, das dritte, a written
1 site » _ site, a site, 7 site
a das » 1 das, 2 das, 3 das

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

• Adding a wildcard symbol may retrieve word variants: technologies used innovation a das written communication 1 site developpement durable l'afrique.*.