Perhaps you should try some spelling variations:
personen communication » personal communication, personal communications, prone communication
developing across » developing cross, development across, developing areas
technologies pt » technologies _, technologies 4, technologies 2
information age » information storage, information access, information about
pt information » ct information, plot information, get information
und personen » und personelle, der personen
4 developing » 3 developing
age und » lage und, auge und, ge und
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 pt information age und personen communication costs 4 developing across africa.*.