Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
information using » information housing, information during, formation using
de communication » mobile communication, online communication
2.5 development » 2.3 development, 2.1 development, 2.2 development
development 2.4 » development 2.1, development 2.3, development 2.2
technologies 1 » technologies _, technologies 4, technologies 2
using dead » using dea, housing dead, using ideal
2.4 areas » 3.4 areas, 2.1 areas, 2.6 areas
cost 2.5 » costs 2.5, cost 2.4, cost 2.2
dead de » dead sea, dead yet

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

• Adding a wildcard symbol may retrieve word variants: technologies 1 information using dead de communication cost 2.5 development 2.4 areas.*.