Perhaps you should try some spelling variations:
personal communications » personal communication, interpersonal communications, internal communications
communications costs » communication costs, communications _
information 6.3.2 » information 2.3.2, information 4.3.2, information 3.3.2
technologies 4 » technologies _
4 information » 2 information, 1 information
eine personal » refine personal, eine person, life personal
developing e » developing _, developing a, developing east
6.3.2 eine » 6.3.2 die, 6.2 eine
e areal » _ areal, 2 areal, 4 areal

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information 6.3.2 eine personal communications costs _ developing e areal.*.