Perhaps you should try some spelling variations:
information centers » information contents, information officers
world communication » work communication, wired communications, good communication
14.3 developing » 1.3 developing, 10.3 developing, 14.1 developing
technologies 2 » technologies _, technologies 4
developing em » developing e, developing eq, developing amp
centers des » centre des, centers case, centers help
costs 14.3 » costs 4.3, costs 12.3, costs 15.3
des world » does world, eds world, ams world
em africa » 1 africa

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 des world communication costs 14.3 developing em africa.*.