Perhaps you should try some spelling variations:
entr » entre, ent, engr
entro » entreo, ento, engro, entre, intro, enero
entry » entrey, enty, engry
entra » entrea, enta, engra, entre, extra, intra
entropie » entreopie, entopie, engropie, entrepie, intropie, eneropie
entropy » entreopy, entopy, engropy, entrepy, 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 entry)) OR entra) OR (entropie OR entropy))('act OR 'acts).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((entr or (entro OR entry)) or entra) or (entropie or entropy))('act or 'acts)".
• Adding a wildcard symbol may retrieve word variants: (((entr or (entro OR entry)) or entra) or (entropie or entropy))('act or 'acts)*.