Perhaps you should try some spelling variations:
actors communication » actions communication, active communication, networks communication
communication system » communication systems, telecommunication system, communication series
information kampf » information amp, information kid, information korea
technologies pt » technologies _, technologies 4, technologies 2
pt information » ct information, plot information, get information
der actors » key actors, new actors, aet actors
system 2 » system 3, system 1, system 2.1

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

• Adding a wildcard symbol may retrieve word variants: technologies pt information kampf der actors communication system 2 development 1 africa.*.