Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
technologien als » technologien des, technologien fur, technologien und
de communication » mobile communication, online communication
als information » als informations, aids information, laws information
5.4 developing » 6.4 developing, 3.3 developing, 2.2 developing
developing a » developing _
4.2 debt » 4.2 der, 4.2 deep, 2.5 debt
cost 5.4 » costs 5.4, cost 2.4, cost 3.4
debt de » debt do, debt debt, debt gdp
a areas » 1 areas, 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 4.2 debt de communication cost 5.4 developing a areas.*.