Perhaps you should try some spelling variations:
when communication » where communication, open communication, sign 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 e » developing _, developing a, developing east
und when » end when, und wahlen, mind when
e 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: technologies de transition _ und when communication costs 4.2 developing e areas.*.