Perhaps you should try some spelling variations:
pol » pool, poly, pole
polyis » poolyis, polyyis, poleyis, polyines
polyions » poolyions, polyyions, poleyions, polygons, polyion, polyanions
polens » poolens, polyens, poleens
pools » tools
wollens » wollen, sollens

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 pooled) OR ((pools OR (polyis OR polyions)) OR (polens OR wollens))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((pol or pooled) or ((pools or (polyis OR polyions)) or (polens or wollens)))".
• Adding a wildcard symbol may retrieve word variants: ((pol or pooled) or ((pools or (polyis OR polyions)) or (polens or wollens)))*.