Perhaps you should try some spelling variations:
pol » pool, poly, pole
polen » poolen, polyen, poleen, pole
polyyis » poolyyis, polyyyis, poleyyis, polyynes
polyens » poolyens, polyyens, poleyens, polyenes, polyene, polyen
polyedern » poolyedern, polyyedern, poleyedern, polyeder
hole » hope, holy, hold

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: ((pol OR polen) OR (((hole OR home) OR polyyis) OR (polyens OR polyedern))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((pol or polen) or (((hole OR home) or polyyis) or (polyens or polyedern)))".
• Adding a wildcard symbol may retrieve word variants: ((pol or polen) or (((hole OR home) or polyyis) or (polyens or polyedern)))*.