Perhaps you should try some spelling variations:
lager communication » layer communication, water communication, manager communication
developing karstic » developing realistic, developing analytic, developing domestic
transformation 13 » transformation 1.3, transformations 13, transformation 1
technologie die » technologie de, technologie im, technologie der
karstic areas » karst areas, basic areas
4 developing » 3 developing
und lager » und langer, und lage, und lander
costs 4 » costs _, costs a, costs 4.2
13 und » 1933 und

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

• Adding a wildcard symbol may retrieve word variants: technologie die transformation 13 und lager communication costs 4 developing karstic areas.*.