Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
information based » information case, information bank, transformation based
do communications » 10 communications, 14 communications, 2 communications
technologien am » technologien im, technologien als, technologie im
am information » guam information, palm information, crm information
4 developing » 3 developing
developing 1 » developing _, developing a, developing e
based debt » based deep, based direct
debt do » debt gdp, debt how
costs 4 » costs _, costs a, costs 4.2
1 areas » 1 area, 2 areas, 4 areas

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

• Adding a wildcard symbol may retrieve word variants: technologien am information based debt do communications costs 4 developing 1 areas.*.