Perhaps you should try some spelling variations:
communication seven » communication sweden, communication event, communication series
3.1 communication » 3.1 communications, 3.2 communication, 3.5 communication
clean development » human development, urban development
information 1.3 » information 14.3, information 1.2, information 10.4
technologies 4 » technologies _
4 information » 2 information, 1 information
china africa » cpia africa, china asia
1.3 do » 10.3 do, 6.3 do, 2.3 do
do 3.1 » do 31, go 3.1

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information 1.3 do 3.1 communication seven clean development china africa.*.