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
technologies 4 » technologies _
2.3 developing » 3.3 developing, 2.2 developing, 1.3 developing
4 information » 2 information, 1 information
centers neo » centers money, centers help, centers real
cost 2.3 » costs 2.3, cost 2.4, cost 2.2

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information centers neo et communication cost 2.3 developing _ africa.*.