Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
technologien aids » technologien als, technologien ad, technologien des
aids information » chandos information, series information
information case » information based, information can, information costs
de communication » mobile communication, online communication
2.3 development » 2 development, 2015 development, 1 development
case debt » rate debt, case des
cost 2.3 » costs 2.3, cost 2.4, cost 2.2
debt de » debt do, debt debt, debt gdp
1 areas » 1 area, 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 aids information case debt de communication cost 2.3 development 1 areas.*.