Perhaps you should try some spelling variations:
2.7 communication » 2.3 communication, 3.2 communication, 2 communication
developing areas » developing asia, developing east, developing a
information 2 » information 3
technology 1 » technology _
areas africa » arabs africa, dress africa, farmers africa
decade 2.7 » decade 2.1, decade 2007, decades 2.1
2 decade » a decade, _ decade, 2 decide

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

• Adding a wildcard symbol may retrieve word variants: technology 1 information 2 decade 2.7 communication costs _ developing areas africa.*.