Perhaps you should try some spelling variations:
equity scale » equity style, equity share, equity small
equity sale » equity style, equity share, equity small
filosofia a » filosofia da, filosofia la, filosofia e
studien 5 » studien _, studien 4
studien 3 » studien _, studien 4

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: ((equity scale) OR (equity sale)) ((studien 5) OR (studien 3)) filosofia a literature.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((equity scale) OR (equity sale)) ((studien 5) or (studien 3)) filosofia a literature".
• Adding a wildcard symbol may retrieve word variants: ((equity scale) OR (equity sale)) ((studien 5) or (studien 3)) filosofia a literature*.