Perhaps you should try some spelling variations:
pol » pool, poly, poll
pole » poole, polye, polle, pose, poly
polyen » poolyen, polyyen, pollyen, polyene, polyenes
polyyen » poolyyen, polyyyen, pollyyen, polyynes, polyaeno, polyenen

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