Perhaps you should try some spelling variations:
persona communication » personal communication, personal communications, personal communicator
information 3.2.3 » information 23.2.3, information 3.2.2, information 3.3.3
technologies 2 » technologies _, technologies 4
developing a » developing _
die persona » die person, de persona, die personale
3.2.3 die » 3.2.1 die, 3.2.2 die
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: technologies 2 information 3.2.3 die persona communication costs _ developing a areas.*.