Perhaps you should try some spelling variations:
communication costa » communication costs, communications costs, communication cote
technologien does » technologien des, technologien als, technologie de
does information » des informations, dis information, users information
de communication » mobile communication, online communication
information 1.2 » information 1.5.2, information 2
4 developing » 3 developing
developing a » developing _
1.2 debt » 4.2 debt, 10.8 debt, 1.2 der
debt de » debt do, debt debt, debt gdp
costa 4 » cost 4, costa e, costa 3
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 does information 1.2 debt de communication costa 4 developing a areas.*.