Perhaps you should try some spelling variations:
information class » information classes, information case, information costs
development based » development band, development case, development bank
de communication » mobile communication, online communication
3.3 development » 2.3 development, 1.3 development, 2.1 development
technologies 2 » technologies _, technologies 4
class debate » grass debatte, class state, care debate
based africa » cases africa, based price, based advice
debate de » debates de, debate we, debatte der
costs 3.3 » costs 2.3, costs 3.5, costs 4.3

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information class debate de communication costs 3.3 development based africa.*.