Perhaps you should try some spelling variations:
oral communication » personal communication
technologien des » technologien fur, technologien und, technologies 2
des information » des informations, does information, dis information
information 5.4 » information 1.2, information 1.5.2, information 2
developing east » development east, developing a, developing asia
di developing » ii developing, i developing, do developing
east access » cost access, easier access, last accessed
who oral » who deal
costs di » costs ii, costs iii, costs _
5.4 who » 1.4 who, 5.4 what

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

• Adding a wildcard symbol may retrieve word variants: technologien des information 5.4 who oral communication costs di developing east access.*.