Perhaps you should try some spelling variations:
entr » entry, ent, engr
entro » entryo, ento, engro, entry, intro, enero
entra » entrya, enta, engra, entry, extra, intra
entre » entrye, ente, engre, entry
entryopie » entryyopie, entyopie, engryopie, entropie, entropies, entropic
entropy » entryopy, entopy, engropy, entrypy, intropy, eneropy

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 entro) OR (entra OR entre)) OR (entryopie OR entropy))('act OR 'acts).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((entr or entro) or (entra OR entre)) or (entryopie or entropy))('act or 'acts)".
• Adding a wildcard symbol may retrieve word variants: (((entr or entro) or (entra OR entre)) or (entryopie or entropy))('act or 'acts)*.