Perhaps you should try some spelling variations:
abierta a » abierta y, abierta de, abierta en
de mario » de marzo, de maria, de marco
11 de » 12 de, 17 de, 16 de
mar 1 » mar a, mar y
31 de » 1 de, 30 de, 3 de
1 11 » 10 11, 15 11, 1 1
1 16 » 1 1, 1 15, 1 10
a 31 » al 31, la 31, a 1

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( Cabildo abiertas 1 11 de mar 1 16 ) OR ( Cabildo abierta a 31 de mario a 1850 ))~".
• Adding a wildcard symbol may retrieve word variants: (( Cabildo abiertas 1 11 de mar 1 16 ) OR ( Cabildo abierta a 31 de mario a 1850 ))*.