Perhaps you should try some spelling variations:
poleznyi » poleznyj, poleznykh, polanyi
pool » poor
pooler » poorer, pooled, cooler, pooledr, poler, poolsr
poole » poore, pooled, pole, pools
poller » pollen, polled, polluter
polis » polish, poles, polls

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: ((((poleyyi OR poleznyi) OR pool) OR ((poller OR pooler) OR pope)) OR (polis OR poole)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((poleyyi OR poleznyi) or pool) or ((poller or pooler) or pope)) or (polis or poole))".
• Adding a wildcard symbol may retrieve word variants: ((((poleyyi OR poleznyi) or pool) or ((poller or pooler) or pope)) or (polis or poole))*.