Perhaps you should try some spelling variations:
oral communication » personal communication
information 1.5.2 » information 1.2, information 2
technologien zur » technologien fur, technologien des, technologien und
developing based » development based, developing asia, developing east
zur information » fur information, your information, der information
4 developing » 3 developing
based access » basic access, basin access, case access
1.5.2 why » 1.1.2 why, 1.2.2 why, 1.5.3 why
why oral » why rural, why deal
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 zur information 1.5.2 why oral communication costs 4 developing based access.*.