Perhaps you should try some spelling variations:
entr » entry, ent, engr
entra » entrya, enta, engra, entry, extra
entro » entryo, ento, engro, entry, intro, enero
entre » entrye, ente, engre, entry
engre » engref, lengre, engrev

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