Perhaps you should try some spelling variations:
oral communication » personal communication
technologien auf » technologien fur, technologien als, technologien am
development 15.3 » development 5.3, development 15.1, development 1.5.2
auf information » f information, math information, 2 information
3 development » 2 development
preface des » preface de, preface les, preface ires
15.3 access » 5.3 access, 1.3 access, 10.5.3 access
des oral » des moral, des oil, des orts
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: technologien auf information preface des oral communication costs 3 development 15.3 access.*.