Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
information centre » information centers, information contents
technologies 2.1 » technologies _, technologies 4, technologies a
de communication » mobile communication, online communication
2.1 information » 3.1 information
developing ict » developing east, developing city, developing data
1 developing » 3 developing, 4 developing, 2 developing
ict africa » art africa, joint africa
centre i » centre _, centre a, centre c
cost 1 » cost 12, cost 15, cost _
i de » i die, i der, i den

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 centre i de communication cost 1 developing ict africa.*.