Perhaps you should try some spelling variations:
informations centers » information centers, information center, information centre
data communication » data communications
technologien des » technologien fur, technologien und, technologies 2
des informations » aids information
6.4 developing » 5.4 developing, 3.3 developing, 2.2 developing
developing ai » developing a, developing av, developing asia
centers ohc » centers ihc, centers hold
costs 6.4 » costs 4.4, costs 4.2, costs 2.3
ai africa » ii africa, can africa, 1 africa
ohc data » lhc data, c data, lcc data

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

• Adding a wildcard symbol may retrieve word variants: technologien des informations centers ohc data communication costs 6.4 developing ai africa.*.