Perhaps you should try some spelling variations:
vote communication » voice communication, ante communication, remote communication
technologien des » technologien fur, technologien und, technologies 2
information case » information based, information can, information costs
developing karst » developing east, developing forest, developing heart
des information » des informations, does information, dis information
4.1 developing » 3.1 developing, 4 developing, 3.3 developing
karst areas » karstic areas, forest areas, thrust areas
case data » cases data, base data, use data
data vote » data notes, dans vote, data von
costs 4.1 » costs 4.2, costs 4.4, costs 4.3

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

• Adding a wildcard symbol may retrieve word variants: technologien des information case data vote communication costs 4.1 developing karst areas.*.