Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
der communication » de communication, under communication, debt communication
technologies 2.5 » technologies 2.1, technologies 2.4, technologies 2.3
2.5 information » 2.1 information, 2.2 information, 2.3 information
developing ict » developing east, developing city, developing data
contents 2.3 » content 2.3, contents 2.1, contents 2.5
4 developing » 3 developing
ict africa » art africa, joint africa
cost 4 » cost _, cost 2.4

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

• Adding a wildcard symbol may retrieve word variants: technologies 2.5 information contents 2.3 der communication cost 4 developing ict africa.*.