Perhaps you should try some spelling variations:
actors communication » actions communication, active communication, networks communication
communication system » communication systems, telecommunication system, communication series
development plan » development plans, development planning, development policy
information 1.2 » information 1.5.2, information 2
can development » clean development, chain development, plan development
technologies 2 » technologies _, technologies 4
plan african » pan african, plan africa, class african
system can » systems can, system change
2 actors » _ actors, 3 actors, 5 actors
1.2 2 » 1.2 _, 1.2 a, 1.2 r

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information 1.2 2 actors communication system can development plan african.*.