Perhaps you should try some spelling variations:
entr » entre, entry, entra
entrena » entreena, entryena, entraena, entrenar, entrent, entrega
entropie » entreopie, entryopie, entraopie, entropy
entree » entreee, entryee, entraee
entryoe » entreyoe, entryyoe, entrayoe

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 entrena) OR ((entropie OR entree) OR entryoe))('act" or 'acute").
• Removing quotes may allow a broader search: ((entr or entrena) or ((entropie or entree) or entryoe))('act or 'acute ).
• Adding a wildcard symbol may retrieve word variants: "((entr or entrena) or ((entropie or entree) or entryoe))('act" or 'acute")*.