Perhaps you should try some spelling variations:
person communication » personal communication, personal communications, irsn communication
technologies series » technology series
series information » business information
information 2.0 » information 2.2, information 2.7, information 2.1
4 developing » 3 developing
der person » per person, der personen, older persons
2.0 der » 2010 der
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technologies series information 2.0 der person communication costs 4 developing _ areal.*.