Perhaps you should try some spelling variations:
transformation 2.1 » transformation 3.1, transformation 1, transformation _
une communication » d'une communication, ante communication, de communication
technologies die » technologies de, technologie die, technologies bit
developing 4 » developing _, developing a, developing e
2.1 und » 2.1 un, 2.1 une, 5.1 und
und une » und un, und und, und uns
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 die transformation 2.1 und une communication costs _ developing 4 areal.*.