Perhaps you should try some spelling variations:
personal communications » personal communication, interpersonal communications, internal communications
communications costs » communication costs, communications _
information 2.1.2 » information 2.2.2, information 2.3.2, information 2.1.5
technologies 2 » technologies _, technologies 4
eine personal » refine personal, eine person, life personal
a developing » a development
2.1.2 eine » 2.1.3 eine, 2.1.2 ein, 6.1.2 eine
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information 2.1.2 eine personal communications costs a developing _ areas.*.