Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
information costs » information contents, information centers, information content
gdp communication » de communication, amp communication, up communication
technologien als » technologien des, technologien fur, technologien und
als information » als informations, aids information, laws information
2.3 developing » 3.3 developing, 2.2 developing, 1.3 developing
developing a » developing _
cost 2.3 » costs 2.3, cost 2.4, cost 2.2
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 costs debt gdp communication cost 2.3 developing a areas.*.