Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
interaction about » interaction among, introduction about, interaction counts
technologies co » technologies _, technologies 4, technologies 2
developing life » development life, developing long, developing city
co interaction » eco interaction, 2 interaction, 3 interaction
4 developing » 3 developing
about data » about dark
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: technologies co interaction about data data communications costs 4 developing life africa.*.