Perhaps you should try some spelling variations:
developing economies » development economics, developing countries, emerging economies
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
technologie und » technologies 2.1
und information » fund information, road information, award information
14 developing » 4 developing, 1 developing, 10 developing
centers 13 » centers 10, centers 3, centers 3.3
cost 14 » cost 4, cost 12, cost 15
13 et » 12 et

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

• Adding a wildcard symbol may retrieve word variants: technologie und information centers 13 et communication cost 14 developing economies africa.*.