Perhaps you should try some spelling variations:
communication costa » communication costs, communications costs, communication cote
5.4 communication » de communication, data communication
technologies 2 » technologies _, technologies 4
1.4 developing » 12.4 developing, 1.3 developing, 14 developing
contents 2.3 » content 2.3, contents 2.1, contents 2.5
developing v » developing av, developing _, developing a
costa 1.4 » costs 11.4, cost 2.4, cost 1.2
v africa » 1 africa, em africa
2.3 5.4 » 2.3 2.4, 2013 5.4

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information contents 2.3 5.4 communication costa 1.4 developing v africa.*.