Perhaps you should try some spelling variations:
information content » information contents, information centers, information centre
technologien aids » technologien als, technologien ad, technologien des
set communication » et communication, get communication, debt communication
aids information » chandos information, series information
developing cpia » developing china, developing asia, developing cil
3.2 developing » 3.3 developing, 2.2 developing, 3 developing
content 3 » content _, content 1
costs 3.2 » costs 4.2, cost 3.2, costs 3.5
3 set » _ set, a set, 2 set

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

• Adding a wildcard symbol may retrieve word variants: technologien aids information content 3 set communication costs 3.2 developing cpia africa.*.