Perhaps you should try some spelling variations:
information centers » information contents, information officers
world communication » work communication, wired communications, good communication
communication cost » communication costs, communication costa, communications costs
technologies 2 » technologies _, technologies 4
3.3 developing » 4 developing, 2 developing, 1 developing
centers does » century does, centers money, contexts does
does world » des world, loses world, notes world
cost 3.3 » cost 3.2, cost 2.3, cost 3.4

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information centers does world communication cost 3.3 developing _ africa.*.