Perhaps you should try some spelling variations:
information centers » information contents, information officers
technologies uses » technologies used, technologies based, technological uses
why communication » de communication, 3 communication, 4 communication
uses information » users information, user information, use information
14.3 developing » 1.3 developing, 10.3 developing, 14.1 developing
developing em » developing e, developing eq, developing amp
centers how » center how, centers hold, century how
costs 14.3 » costs 4.3, costs 12.3, costs 15.3
em africa » 1 africa
how why » now why, how who, how what

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

• Adding a wildcard symbol may retrieve word variants: technologies uses information centers how why communication costs 14.3 developing em africa.*.