Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
do communications » 10 communications, 14 communications, 2 communications
technologien als » technologien des, technologien fur, technologien und
information case » information based, information can, information costs
als information » als informations, aids information, laws information
2.2 development » 3.2 development, 2.3 development, 4.2 development
case debt » rate debt, case des
costs 2.2 » costs 4.2, costs 2.3, cost 2.2
debt do » debt gdp, debt how
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 als information case debt do communications costs 2.2 development 1 areas.*.