Perhaps you should try some spelling variations:
information content » information contents, information centers, information centre
communication cost » communication costs, communication costa, communications costs
2.3 developing » 3.3 developing, 2.2 developing, 1.3 developing
developing a » developing _
content 8.3 » context 8.3, content 2.3, content 3.3
8.3 mobile » 4.3 mobile, 8.1 mobile, 8.4 mobile
cost 2.3 » costs 2.3, cost 2.4, cost 2.2
a africa » 1 africa, can africa, em africa

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

• Adding a wildcard symbol may retrieve word variants: technologien _ information content 8.3 mobile communication cost 2.3 developing a africa.*.