Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
technologien als » technologien des, technologien fur, technologien und
do communication » do communications, de communication, ngo communication
als information » als informations, aids information, laws information
3.2 developing » 3.3 developing, 2.2 developing, 3 developing
developing a » developing _
law debt » low debt, law debate, how debt
cost 3.2 » cost 2.4
debt do » debt gdp, debt how
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 law debt do communication cost 3.2 developing a areas.*.