Perhaps you should try some spelling variations:
lager communication » layer communication, water communication, manager communication
technologies de » technologies _, technologies 4, technologies 2
4.2 developing » 2.2 developing, 3.2 developing, 4.1 developing
de transition » phase transition
developing 4 » developing _, developing a, developing e
und lager » und langer, und lage, und lander
from und » from fund, rom und, from round
4 areal » 4 real, _ areal, 2 areal

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

• Adding a wildcard symbol may retrieve word variants: technologies de transition from und lager communication costs 4.2 developing 4 areal.*.