Perhaps you should try some spelling variations:
personal communication » interpersonal communication
technologies 2.2 » technologies 2.1, technologies 3.2, technologies 2.4
2.2 information » 4.2 information, 2.2.3 information, 2.2 transformation
information und » informations und
developing asia » development asia, developing a
4 developing » 3 developing
de personal » der personal, des personal, de persona
costs 4 » costs _, costs a, costs 4.2
und de » und der, und des, und den
areal. » areas., area., real.

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

• Adding a wildcard symbol may retrieve word variants: technologies 2.2 information und de personal communication costs 4 developing asia areal.*.