Perhaps you should try some spelling variations:
information space » information search, information service, information science
de communication » mobile communication, online communication
use information » user information, house information, users information
technology use » technology 1, technology 2.2, technology 3
6.4 developing » 5.4 developing, 3.3 developing, 2.2 developing
space debate » shame debate, space related, care debate
developing a » developing _
debate de » debates de, debate we, debatte der
costs 6.4 » costs 4.4, costs 4.2, costs 2.3
a africa » 1 africa, can africa, em africa

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

• Adding a wildcard symbol may retrieve word variants: technology use information space debate de communication costs 6.4 developing a africa.*.