Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
information 1.5.2 » information 1.2, information 2
technologien als » technologien des, technologien fur, technologien und
do communication » do communications, de communication, ngo communication
als information » als informations, aids information, laws information
2.2 developing » 3.2 developing, 3.3 developing, 2.2 development
developing 1 » developing _, developing a, developing e
1.5.2 debt » 5.2.2 debt, 1.5.2 direct, 5.1.3.2 debt
cost 2.2 » costs 2.2, cost 2.4, cost 3.2
debt do » debt gdp, debt how
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 als information 1.5.2 debt do communication cost 2.2 developing 1 areas.*.