Perhaps you should try some spelling variations:
persona communication » personal communication, personal communications, personal communicator
technologien aids » technologien als, technologien ad, technologien des
aids information » chandos information, series information
information 2.2 » information 1.2, information 2.7, information 2.2.2
4 developing » 3 developing
developing 1 » developing _, developing a, developing e
ein persona » eine person, die persona, non personal
costs 4 » costs _, costs a, costs 4.2
1 areas » 1 area, 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 aids information 2.2 ein persona communication costs 4 developing 1 areas.*.