Perhaps you should try some spelling variations:
oral communication » personal communication
technologien fair » technologien fur, technologies fail, technologien als
information 4.1.1 » information 4.1.3, information 4.1.4, information 6.1.1
fair information » fairs information, fur information, labor information
developing east » development east, developing a, developing asia
4 developing » 3 developing
east anomaly » based anomaly, risk anomaly
4.1.1 book » 4.1.1 block, 1.7.1 book
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 4.1.1 book oral communication costs 4 developing east anomaly.*.