Perhaps you should try some spelling variations:
oral communication » personal communication
und informations » und information, und informationen, fund information
informations 2.2 » information 2.2, information 2.2.2, information 3.2.2
technologie und » technologies 2.1
developing sea » developing asia, developing self, developing a
books oral » roots oral, books journal
2.2 books » 1.2 book
area. » areas.

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

• Adding a wildcard symbol may retrieve word variants: technologie und informations 2.2 books oral communication costs _ developing sea area.*.