Perhaps you should try some spelling variations:
poleis » polens, paleis, polemics, popeis, poseis
pole » pope, pose
poly » holy
polylen » holylen, polyolen, polyle, polyblend
polle » pollen, polled, poller
pooles » poodles, pooled, poole
pools » tools

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: (((poleis OR ((pole OR poly) OR polle)) OR (polylen OR post)) OR (pooles OR pools)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((poleis or ((pole OR poly) or polle)) or (polylen or post)) or (pooles or pools))".
• Adding a wildcard symbol may retrieve word variants: (((poleis or ((pole OR poly) or polle)) or (polylen or post)) or (pooles or pools))*.