Perhaps you should try some spelling variations:
face communication » voice communication, de communication, time communication
clean development » human development, urban development
technologien des » technologien fur, technologien und, technologies 2
des information » des informations, does information, dis information
information a » information age, information about
costs clean » costs clear
1 afrique » l afrique, en afrique, 1 enrique
das face » das fach, das fases, his face
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: technologien des information a das face communication costs clean development 1 afrique.*.