Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
information centers » information contents, information officers
technologies smart » technologies art, technologies part, technologies summary
smart information » small information, market information, impact information
developing em » developing e, developing eq, developing amp
4 developing » 3 developing
centers raw » centers rain, centers real, centers a
em africa » 1 africa
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technologies smart information centers raw data communications costs 4 developing em africa.*.