Perhaps you should try some spelling variations:
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
developing can » developing a, developing ai, developing av
15 developing » 1 developing, 5 developing, 10 developing
contents 83 » contents 2.3, contents 8.1, contents 1
can africa » urban africa
cost 15 » cost 12, cost 5, cost 11.5
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 contents 83 get communication cost 15 developing can africa.*.