Perhaps you should try some spelling variations:
oral communication » personal communication
development 10.3 » development 10.1, development 10.2, development 15.3
3 development » 2 development
preface der » preface de, preface des, preface here
10.3 access » 1.3 access, 10.2 access, 10.5.3 access
der oral » der moral, der ort, der orte
costs 3 » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technologies _ information preface der oral communication costs 3 development 10.3 access.*.