Perhaps you should try some spelling variations:
information hours » information sources, information source, information how
o140 information » 10 information, 1 information, 4 information
de communication » mobile communication, online communication
technology o140 » technology 1
developing can » developing a, developing ai, developing av
hours debate » horak debate, u.s debate
4 developing » 3 developing
can africa » urban africa
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 o140 information hours debate de communication costs 4 developing can africa.*.