Perhaps you should try some spelling variations:
oral communication » personal communication
technologien aids » technologien als, technologien ad, technologien des
information cases » information case, information classes, information costs
aids information » chandos information, series information
4 development » 2 development, 4 developing
cases new » case new, cases des, cases el
new oral » new moral, knew moral, new rural
a access » 2 access, 3 access, 4 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: technologien aids information cases new oral communication costs 4 development a access.*.