Perhaps you should try some spelling variations:
personal communication » interpersonal communication
technologien als » technologien des, technologien fur, technologien und
als information » als informations, aids information, laws information
information 5.2 » information 15.2, information 1.2, information 5.4
non personal » 1 personal, 4 personal, 2 personal
developing a » developing _
5.2 non » 15.2 non, 5.27 non, 5.28 non
a 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: technologien als information 5.2 non personal communication costs _ developing a areas.*.