Perhaps you should try some spelling variations:
information context » information content, information contents, information centers
communication cost » communication costs, communication costa, communications costs
technologien 2 » technologies 2, technologien _, technologien 1
2.3 developing » 3.3 developing, 2.2 developing, 1.3 developing
developing 1 » developing _, developing a, developing e
context 8.3 » context 1.3, context 2.3, context 4.3
8.3 mobile » 4.3 mobile, 8.1 mobile, 8.4 mobile
cost 2.3 » costs 2.3, cost 2.4, cost 2.2

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

• Adding a wildcard symbol may retrieve word variants: technologien 2 information context 8.3 mobile communication cost 2.3 developing 1 africa.*.