Perhaps you should try some spelling variations:
de communication » mobile communication, online communication
information un » information und, information unit, information use
technology 1 » technology _
4 developing » 3 developing
developing 1 » developing _, developing a, developing e
un debate » un debat, u.s debate, _ debate
debate de » debates de, debate we, debatte der
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology 1 information un debate de communication costs 4 developing 1 africa.*.