Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
information centers » information contents, information officers
de communications » de communication, do communications, mce communications
developing city » developing cities, developing data, developing high
technologies 2 » technologies _, technologies 4
5 developing » 3 developing, 4 developing, 2 developing
city africa » china africa, cults africa
centers 3 » centers _, centers a, centers 3.3
costs 5 » costs _, costs 4, costs a
3 de » 3 die, 3 der, 3 des

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information centers 3 de communications costs 5 developing city africa.*.