Perhaps you should try some spelling variations:
personal communication » interpersonal communication
2.1 development » 3.1 development, 2.3 development, 2.2 development
development 2.3 » development 2.1, development 1
under personal » und personal, der personal, de personal
information 1 » information 2, information 3, information 3.2
2.3 access » 5.3 access, 1.3 access, 2.4 access
costs 2.1 » costs 2.3, costs 4.1, costs 2.2
1 under » 10 under, 13 under, 4 under

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

• Adding a wildcard symbol may retrieve word variants: technologien _ information 1 under personal communication costs 2.1 development 2.3 access.*.