Perhaps you should try some spelling variations:
information centers » information contents, information officers
developing state » developing states, developing stable, developing strategy
6 communication » 3 communication, 4 communication, de communication
technologies 2 » technologies _, technologies 4
1.4 developing » 12.4 developing, 1.3 developing, 14 developing
state africa » trade africa
centers how » center how, centers hold, century how
costs 1.4 » costs 11.4, costs 12.4, costs 4.4
how 6 » how 46, how _, how a

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 how 6 communication costs 1.4 developing state africa.*.