Perhaps you should try some spelling variations:
information centers » information contents, information officers
communication cost » communication costs, communication costa, communications costs
get communication » et communication, debt communication, de communication
technologien des » technologien fur, technologien und, technologies 2
des information » des informations, does information, dis information
developing east » development east, developing a, developing asia
2.3 developing » 3.3 developing, 2.2 developing, 1.3 developing
centers 2.2 » centers 2.8, centers 12.4, century 2.2
east africa » west africa
cost 2.3 » costs 2.3, cost 2.4, cost 2.2
2.2 get » 2.2 geo, 3.2 get, 2.2.1 get

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

• Adding a wildcard symbol may retrieve word variants: technologien des information centers 2.2 get communication cost 2.3 developing east africa.*.