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
3.3 developing » 4 developing, 2 developing, 1 developing
developing em » developing e, developing eq, developing amp
contents he » contents je, contents head, contents how
em africa » 1 africa
cost 3.3 » cost 3.2, cost 2.3, cost 3.4
he get » we get, help get, she gets

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 he get communication cost 3.3 developing em africa.*.