Perhaps you should try some spelling variations:
information 13.3.1 » information 13.1.1, information 13.2.1, information 1.2.3.1
oral communication » personal communication
developing greater » development greater, developing gender, developing rates
technologien am » technologien im, technologien als, technologie im
am information » guam information, palm information, crm information
a developing » a development
13.3.1 why » 1.2.1 why
why oral » why rural, why deal
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technologien am information 13.3.1 why oral communication costs a developing greater access.*.