Perhaps you should try some spelling variations:
information centers » information contents, information officers
communication cost » communication costs, communication costa, communications costs
technologien aids » technologien als, technologien ad, technologien des
get communication » et communication, debt communication, de communication
aids information » chandos information, series information
11.5 developing » 1.5 developing, 1.1.2 developing, 1.3 developing
developing em » developing e, developing eq, developing amp
centers 83 » centers 3, centers 3.3, centers 4.3
cost 11.5 » cost 11.3, costs 11.1, costs 11.4
em africa » 1 africa
83 get » 3 get

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

• Adding a wildcard symbol may retrieve word variants: technologien aids information centers 83 get communication cost 11.5 developing em africa.*.