Perhaps you should try some spelling variations:
2001 communication » 2011 communication, 2.3 communication, 1 communication
user information » der information, other information, user innovation
information case » information based, information can, information costs
technology user » technology users, technology use, technology used
4.4 developing » 5.4 developing, 6.4 developing, 1.4 developing
developing can » developing a, developing ai, developing av
case decade » last decade, past decade, cases decided
decade 2001 » decade 2000, decade 2007, decade 2.1
can africa » urban africa
costs 4.4 » costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology user information case decade 2001 communication costs 4.4 developing can africa.*.