Perhaps you should try some spelling variations:
personal communications » personal communication, interpersonal communications, internal communications
communications costs » communication costs, communications _
technologien des » technologien fur, technologien und, technologies 2
des informations » aids information
developing east » development east, developing a, developing asia
der personal » der personalen, der personen, der person
4 developing » 3 developing
costs 4 » costs _, costs a, costs 4.2
und » fund
areal. » areas., area., real.

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

• Adding a wildcard symbol may retrieve word variants: technologien des informations und der personal communications costs 4 developing east areal.*.