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