Perhaps you should try some spelling variations:
personal communication » interpersonal communication
technologien aids » technologien als, technologien ad, technologien des
aids information » chandos information, series information
developing east » development east, developing a, developing asia
information 2 » information 3
der personal » der personalen, der personen, der person
3 developing » 3 development
east areas » karst areas, east asezs
costs 3 » costs _, costs 4, costs a
2 der » _ der

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

• Adding a wildcard symbol may retrieve word variants: technologien aids information 2 der personal communication costs 3 developing east areas.*.