Perhaps you should try some spelling variations:
personal communications » personal communication, interpersonal communications, internal communications
communications costs » communication costs, communications _
information 2.3.2 » information 2.2.2, information 4.3.2, information 3.2
technologien a » technologien am, technologien ad, technologien _
a information » 2 information, 1 information
ein personal » ein persona, non personal, e personal
2.3.2 ein » 5.3.2 ein, 2.3.3 ein, 6.3.2 eine
costs a » costs _, costs 4
a areas » 1 areas, 2 areas, 4 areas

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

• Adding a wildcard symbol may retrieve word variants: technologien a information 2.3.2 ein personal communications costs a development a areas.*.