Perhaps you should try some spelling variations:
persona communication » personal communication, personal communications, personal communicator
technologien aids » technologien als, technologien ad, technologien des
information based » information case, information bank, transformation based
aids information » chandos information, series information
developing east » development east, developing a, developing asia
4 developing » 3 developing
die persona » die person, de persona, die personale
east areas » karst areas, east asezs
based die » basel die, based deep, based dm
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: technologien aids information based die persona communication costs 4 developing east areas.*.