Perhaps you should try some spelling variations:
distribution political » distribution policy, distributions statistical
della distribution » delta distribution, dilla distribution, della distribuzione
teoria della » storia della
historia del » historia de
die della » die delta, die cella, die dell
idee die » idee der, idee des, idee bis

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