Perhaps you should try some spelling variations:
data communication » data communications
de developpement » sme development
developpement de » developpement des, developpement durable
technologies de » technologies _, technologies 4, technologies 2
de transition » phase transition
systems de » systemes de, systems der, systems die
de africa » does africa, de america, use africa
und data » fund data, wind data, und daten

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

• Adding a wildcard symbol may retrieve word variants: technologies de transition _ und data communication systems de developpement de africa.*.