Perhaps you should try some spelling variations:
distribution political » distribution policy, distributions statistical
ele distribution » file distribution, hole distribution, mile distribution
teoria della » storia della
historia del » historia de
der ele » der elek

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: ((teoria della) OR (historia del)) idee der ele distribution political.
• Adding a wildcard symbol may retrieve word variants: ((teoria della) or (historia del)) idee der ele distribution political*.