Perhaps you should try some spelling variations:
oral communication » personal communication
technologies 2.1 » technologies _, technologies 4, technologies a
2.1 information » 3.1 information
information und » informations und
developing east » development east, developing a, developing asia
4 developing » 3 developing
east animal » et animal, based animal, meat animals
und book » fund book, und ebook, hand 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: technologies 2.1 information und book oral communication costs 4 developing east animal.*.