Perhaps you should try some spelling variations:
persona communication » personal communication, personal communications, personal communicator
technologien der » technologien des, technologie der, technologien fur
developing areas » developing asia, developing east, developing a
der information » insider information, sector information, labor information
information 3 » information 2
4 developing » 3 developing
areas arenas » areas trends, seas areas
de persona » de personal, de personas, die persona
costs 4 » costs _, costs a, costs 4.2
3 de » 3 die, 3 der, 3 des

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

• Adding a wildcard symbol may retrieve word variants: technologien der information 3 de persona communication costs 4 developing areas arenas.*.