Perhaps you should try some spelling variations:
information centers » information contents, information officers
technologien dis » technologien des, technologien als, technologien im
dis information » mis information, aids information, des informations
3 developing » 3 development
developing v » developing av, developing _, developing a
centers 21 » centers 2.2, centers 2.8, centers _
21 mobile » 2.1 mobile, 2 mobile, 1 mobile
v africa » 1 africa, em africa
costs 3 » 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: technologien dis information centers 21 mobile communication costs 3 developing v africa.*.