Perhaps you should try some spelling variations:
persona communication » personal communication, personal communications, personal communicator
technologien zur » technologien fur, technologien des, technologien und
zur information » fur information, your information, der information
developing task » developing tpack, developing east, developing trust
4.5 developing » 1.5 developing, 4.1 developing, 5.5 developing
information 2 » information 3
die persona » die person, de persona, die personale
task arenas » task_arenas _
costs 4.5 » costs 4.2, costs 4.4, costs 3.5

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

• Adding a wildcard symbol may retrieve word variants: technologien zur information 2 die persona communication costs 4.5 developing task arenas.*.