Perhaps you should try some spelling variations:
information centers » information contents, information officers
communication cost » communication costs, communication costa, communications costs
technologies 2.1 » technologies _, technologies 4, technologies a
de communication » mobile communication, online communication
2.1 information » 3.1 information
12.4 developing » 1.4 developing, 2.2 developing, 1.3 developing
developing ict » developing east, developing city, developing data
centers 13 » centers 10, centers 3, centers 3.3
ict africa » art africa, joint africa
cost 12.4 » coast 12.4, costs 12.4, cost 2.4
13 de » 13 die, 13 der, 13 des

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

• Adding a wildcard symbol may retrieve word variants: technologies 2.1 information centers 13 de communication cost 12.4 developing ict africa.*.