Perhaps you should try some spelling variations:
oral communication » personal communication
technologien als » technologien des, technologien fur, technologien und
formation phase » formation chapter
20 development » 2 development, 2015 development, 2007 development
development 14 » development 1, development 1.1, development 2.4
als formation » als information, its formation, callus formation
phase des » phasen des, phase der
14 access » 4 access, 10 access, 12 access
des oral » des moral, des oil, des orts
costs 20 » costs 60, costs 2.3, costs 2.1

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

• Adding a wildcard symbol may retrieve word variants: technologien als formation phase des oral communication costs 20 development 14 access.*.