Perhaps you should try some spelling variations:
information centers » information contents, information officers
de communication » mobile communication, online communication
developing ratha » developing data, developing path, developing rates
technologies 2 » technologies _, technologies 4
15 developing » 1 developing, 5 developing, 10 developing
ratha african » intra african, agoa african, baga african
centers 3.3 » centers 3.8, centers 4.3, century 3.3
costs 15 » costs 5, costs 1, costs 15.3
3.3 de » 3.3 die, 3.3 der, 3.3 dem

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 3.3 de communication costs 15 developing ratha african.*.