Perhaps you should try some spelling variations:
communication costa » communication costs, communications costs, communication cote
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 4 » developing _, developing a, developing e
costa 2.2 » cost 2.2, costs 2.2, forsta 2.2
4.2 debt » 4.2 der, 4.2 deep, 2.5 debt
debt de » debt do, debt debt, debt gdp
4 areas » 1 areas, 2 areas, 4 areal

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

• Adding a wildcard symbol may retrieve word variants: technologien ad information 4.2 debt de communication costa 2.2 developing 4 areas.*.