Perhaps you should try some spelling variations:
formen communication » force communication, formen kommunikation, open communication
technologien als » technologien des, technologien fur, technologien und
developing karst » developing east, developing forest, developing heart
als information » als informations, aids information, laws information
2.3 developing » 3.3 developing, 2.2 developing, 1.3 developing
karst areas » karstic areas, forest areas, thrust areas
die formen » die folgen
costs 2.3 » costs 4.2, costs 4.4

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

• Adding a wildcard symbol may retrieve word variants: technologien als information _ die formen communication costs 2.3 developing karst areas.*.