Perhaps you should try some spelling variations:
entr » entry, entre, entra
entravent » entryavent, entreavent, entraavent, entrapment, entrant
entrent » entryent, entreent, entraent, entrench
entryto » entryyto, entreyto, entrayto, entrato

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: ((entr OR (entravent OR entrent)) OR entryto)(('act OR 'acted ) OR 'acute ).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((entr or (entravent OR entrent)) or entryto)(('act or 'acted ) or 'acute )".
• Adding a wildcard symbol may retrieve word variants: ((entr or (entravent OR entrent)) or entryto)(('act or 'acted ) or 'acute )*.