Perhaps you should try some spelling variations:
information centers » information contents, information officers
communication cost » communication costs, communication costa, communications costs
et communication » et communicatione, get communication, debt communication
economies africa » economics africa, economies after, economies from
technologies 2 » technologies _, technologies 4
centers 2.3 » center 2.3, centers 2.2, centers 2.8
14 emerging » 1.4 emerging, 4 emerging, 1 emerging
cost 14 » cost 4, cost 12, cost 15
2.3 et » 2.3 ett, 2.3 el, 2.3 es

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 2.3 et communication cost 14 emerging economies africa.*.