Perhaps you should try some spelling variations:
personal communication » interpersonal communication
technologien fur » technologien des, technologien und, technologies 2
fur information » zur information, fair information, your information
information gas » information gaps, information gap, information goods
fields personal » aids personal
4 developing » 3 developing
developing e » developing _, developing a, developing east
e access » 2 access, 3 access, 4 access
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 fur information gas fields personal communication costs 4 developing e access.*.