Perhaps you should try some spelling variations:
1.5 communication » 3.5 communication, 1.1 communication, 1.3 communication
developing areas » developing asia, developing east, developing a
technologies 12 » technologies 2, technologies 1, technologies 11
information u.s » information und, information use, information 1.2
12 information » 1.2 information, 2 information, 2012 information
a developing » a development
areas africa » arabs africa, dress africa, farmers africa
u.s debate » u.s senate, 2.1 debate, 3.4 debate
debate 1.5 » debatte 1.5, debate 1.4, debate 1.6
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technologies 12 information u.s debate 1.5 communication costs a developing areas africa.*.