Perhaps you should try some spelling variations:
2001 communication » 2011 communication, 2.3 communication, 1 communication
usage information » age information, use information, wage information
technology usage » technology use, technology age, technology users
information last » information list, information lost, information law
14.3 developing » 1.3 developing, 10.3 developing, 14.1 developing
developing a » developing _
decade 2001 » decade 2000, decade 2007, decade 2.1
costs 14.3 » costs 4.3, costs 12.3, costs 15.3
a africa » 1 africa, can africa, em africa

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

• Adding a wildcard symbol may retrieve word variants: technology usage information last decade 2001 communication costs 14.3 developing a africa.*.