Perhaps you should try some spelling variations:
et developpements » et developpement, des developpements, en developpement
developpements de » developpement de, developpement des, developpement du
integration rice » integration risk, integration roles, integrated rice
technologie der » technologie de, technologien des, technologies de
der integration » zur integration, sector integration
costs et » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technologie der integration rice trade _ communication costs et developpements de l'afrique.*.