Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
4 information » 2 information, 1 information
states africa » states african, state africa, status africa
technology 4 » technology _, technology 1, technology 3
doubles data » double dot, tables data
4 developing » 3 developing
law doubles » la double, law douglass
costs 4 » costs _, costs a, 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 4 information law doubles data communications costs 4 developing states africa.*.