Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
technologien series » technologies series, technology series, technologies varies
information context » information content, information contents, information centers
series information » business information
vos communications » vs communications, laos communications, do communications
2.2 developing » 3.2 developing, 3.3 developing, 2.2 development
developing em » developing e, developing eq, developing amp
context a » context 3
costs 2.2 » costs 4.2, costs 2.3, cost 2.2
em africa » 1 africa
a vos » a vis, a von, a vom

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

• Adding a wildcard symbol may retrieve word variants: technologien series information context a vos communications costs 2.2 developing em africa.*.