Perhaps you should try some spelling variations:
information content » information contents, information centers, information centre
technologien aids » technologien als, technologien ad, technologien des
aids information » chandos information, series information
10 communication » 1 communication, de communication, 3 communication
developing china » developing china's, development china, developing caring
2.4 developing » 12.4 developing, 2.2 developing, 5.4 developing
china asia » china asean
content 1 » content _
costs 2.4 » costs 12.4, costs 23.4, cost 2.4
1 10 » _ 10, 1 1, 9 10

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 1 10 communication costs 2.4 developing china asia.*.