Perhaps you should try some spelling variations:
personal communication » interpersonal communication
information 2.3.1 » information 2.3.2, information 5.3.1, information 2.3.3
technologies 2 » technologies _, technologies 4
eine personal » refine personal, eine person, life personal
developing 2 » developing _, developing a, developing e
2.3.1 eine » 12.3.1 eine, 3.3.1 eine, 2.2.1 eine
2 areal » 2 real, _ areal, 2 areas

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information 2.3.1 eine personal communication costs _ developing 2 areal.*.