Perhaps you should try some spelling variations:
technologien aids » technologien als, technologien ad, technologien des
information enter » information center, information centers, information letter
aids information » chandos information, series information
de communication » mobile communication, online communication
6.4 developing » 5.4 developing, 3.3 developing, 2.2 developing
developing can » developing a, developing ai, developing av
enter world » better world, after world, inner world
can africa » urban africa
costs 6.4 » costs 4.4, costs 4.2, costs 2.3
world de » world die, world do, world debt

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

• Adding a wildcard symbol may retrieve word variants: technologien aids information enter world de communication costs 6.4 developing can africa.*.