Perhaps you should try some spelling variations:
persona communication » personal communication, personal communications, personal communicator
technologien und » technologie und, technologien des, technologien fur
und informatics » und information, und informatik, fund information
informatics 1.3 » informatics 1.2, informatics 13.5, information 1.3
developing 2 » developing _, developing a, developing e
die persona » die person, de persona, die personale
1.3 die » 3.3 die, 2.3 die, 4.3 die
2 areal » 2 real, _ areal, 2 areas

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

• Adding a wildcard symbol may retrieve word variants: technologien und informatics 1.3 die persona communication costs _ developing 2 areal.*.