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
fet communication » et communication, get communication, debt communication
technologien als » technologien des, technologien fur, technologien und
als information » als informations, aids information, laws information
4 developing » 3 developing
centers 3 » centers _, centers a, centers 3.3
cost 4 » cost _, cost 2.4
3 fet » 3 fat

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 3 fet communication cost 4 developing economies f430.*.