Perhaps you should try some spelling variations:
de communication » mobile communication, online communication
law information » laws information, new information, how information
information u.s » information und, information use, information 1.2
technology law » technology 1, technology 2.2, technology 3
4 developing » 3 developing
developing a » developing _
u.s debate » u.s senate, 2.1 debate, 3.4 debate
debate de » debates de, debate we, debatte der
a africa » 1 africa, can africa, em africa
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 law information u.s debate de communication costs 4 developing a africa.*.