Perhaps you should try some spelling variations:
verbal communication » nonverbal communication, virtual communication, oral communication
technologies 4 » technologies _
4 informations » 4 information, 2 informations, 3 informations
normen verbal » non verbal, forma verbal
4 developing » 3 developing
developing 3 » developing _, developing a, developing e
und normen » und formen
3 access » 2 access
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 informations und normen verbal communication costs 4 developing 3 access.*.