Perhaps you should try some spelling variations:
oral communication » personal communication
technologies 2.1 » technologies _, technologies 4, technologies a
development area » development great, development korea, development asia
2.1 information » 3.1 information
information und » informations und
area trends » africa trends, threat trends
kiel oral » kiel moral
und kiel » univ kiel, und ki, und kino

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 kiel oral communication costs _ development area trends.*.