Perhaps you should try some spelling variations:
internationales system » internationalen system, international system, international systems
international action » international actors, international education, international national
des private » des privaten
des prive » des privy, des primes, des privat
system de » system der, system des, system deep
de ideis » de iis

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

• If you are trying to use Boolean operators, they must be ALL CAPS: international action of the history of ((des prive) OR (des private)) internationales system de ideis.
• Adding a wildcard symbol may retrieve word variants: international action of the history of ((des prive) or (des private)) internationales system de ideis*.