Perhaps you should try some spelling variations:
abierto y » abierta y, abierto en, aborto y
de maria » de marzo, de marx
maria de » maria del
a 1820 » a 1920, a 1850, a 1827
80 de » 30 de, 20 de, 10 de
mar a » mar y
y 80 » y 10, y 70, _ 80
5 21 » _ 21, 5 1, 5 23
5 2 » 5 23, 5 02, 5 62

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( Cabildo abierto y 80 de mar a 1820 ) OR ( Cabildo abierta ((5 2) OR (5 21)) de maria de 1880 ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( Cabildo abierto y 80 de mar a 1820 ) OR ( Cabildo abierta ((5 2) OR (5 21)) de maria de 1880 ))".
• Adding a wildcard symbol may retrieve word variants: (( Cabildo abierto y 80 de mar a 1820 ) OR ( Cabildo abierta ((5 2) OR (5 21)) de maria de 1880 ))*.