Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
information 10.8 » information 10.4, information 10.1, information 1.2
de communication » mobile communication, online communication
technologien ad » technologien am, technologien und, technologien als
ad information » d information, nd information, od information
2.2 developing » 3.2 developing, 3.3 developing, 2.2 development
developing 1 » developing _, developing a, developing e
cost 2.2 » costs 2.2, cost 2.4, cost 3.2
debt de » debt do, debt debt, debt gdp
1 area » 1 areas, 21 area, 3 area

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

• Adding a wildcard symbol may retrieve word variants: technologien ad information 10.8 debt de communication cost 2.2 developing 1 area.*.