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
get communication » et communication, debt communication, de communication
technologien als » technologien des, technologien fur, technologien und
als information » als informations, aids information, laws information
5.4 developing » 6.4 developing, 3.3 developing, 2.2 developing
centers a » centers _, center a, enters a
cost 5.4 » costs 5.4, cost 2.4, cost 3.4
a get » _ get, a geo, i get

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

• Adding a wildcard symbol may retrieve word variants: technologien als information centers a get communication cost 5.4 developing economies f430.*.