Perhaps you should try some spelling variations:
information content » information contents, information centers, information centre
communication cost » communication costs, communication costa, communications costs
de communication » mobile communication, online communication
technologies 2 » technologies _, technologies 4
1 developing » 3 developing, 4 developing, 2 developing
content 1.3 » context 1.3, content 2.3, content 3.3
1.3 de » 1.3 die, 1.3 der, 1.3 den
cost 1 » cost 12, cost 15, cost _

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information content 1.3 de communication cost 1 developing _ africa.*.