Perhaps you should try some spelling variations:
abierto al » abierta al, abierto ana, abierta a
18 del » 18 de, 11 del, 19 del
del 12 » del 11, del 13, del 16
2 1940 » y 1940, e 1940, h 1940
al 18 » al 15, al 10
15 de » 1 de, 12 de, 17 de
mar a » mar y
12 2 » 12 22, 12 24, 12 29

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 abierto al 18 del 12 2 1940 ) OR ( Cabildo abierta de 15 de mar a 1850 ))~".
• Adding a wildcard symbol may retrieve word variants: (( Cabildo abierto al 18 del 12 2 1940 ) OR ( Cabildo abierta de 15 de mar a 1850 ))*.