Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
do communications » 10 communications, 14 communications, 2 communications
technologien des » technologien fur, technologien und, technologies 2
des information » des informations, does information, dis information
information can » information case, information 1, information 1.2
2.2 developing » 3.2 developing, 3.3 developing, 2.2 development
developing 2 » developing _, developing a, developing e
costs 2.2 » costs 4.2, costs 2.3, cost 2.2
can debt » bank debt, card debt, loan debt
debt do » debt gdp, debt how
2 areas » 1 areas, 2 areal, 4 areas

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

• Adding a wildcard symbol may retrieve word variants: technologien des information can debt do communications costs 2.2 developing 2 areas.*.