Perhaps you should try some spelling variations:
personal communication » interpersonal communication
technologien aids » technologien als, technologien ad, technologien des
developing skills » developing states
aids information » chandos information, series information
skills creating » skill creation, skills create, skills getting
information 2 » information 3
die personal » die personale, de personal, die persona
4 developing » 3 developing
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 aids information 2 die personal communication costs 4 developing skills creating.*.