Perhaps you should try some spelling variations:
pol » pool, poly, pole
polyyls » poolyyls, polyyyls, poleyyls, polyynes
polypols » poolypools, polyypolys, poleypoles, polypol, polyposis, polyposes
polyion » poolyion, polyyion, poleyion, polyanion, polyionic
hole » home, hope, holy

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 pope) OR (((polyyls OR polypols) OR polyion) OR hole)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((pol or pope) or (((polyyls OR polypols) or polyion) or hole))".
• Adding a wildcard symbol may retrieve word variants: ((pol or pope) or (((polyyls OR polypols) or polyion) or hole))*.