Perhaps you should try some spelling variations:
oral communication » personal communication
und informationen » und information, und informationelle, fund information
informationen 1.2 » information 1.2, informationen 2, informationen 10
technologie und » technologies 2.1
developing asia » development asia, developing a
4 developing » 3 developing
1.2 book » 1.4 book, 1.5 book, 1.6 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: technologie und informationen 1.2 book oral communication costs 4 developing asia asia.*.