Perhaps you should try some spelling variations:
oral communication » personal communication
technologien fair » technologien fur, technologies fail, technologien als
information 4.1.3 » information 4.3.3, information 3.1.3, information 4.1.1
fair information » fairs information, fur information, labor information
developing case » developing based, developing east, developing ce
4 developing » 3 developing
case anomaly » based anomaly, trace anomaly, risk anomaly
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 fair information 4.1.3 book oral communication costs 4 developing case anomaly.*.