Perhaps you should try some spelling variations:
1900 dde » 1900 del
dde marx » de marx, de mar, de marc
15 mar » 13 mar, 1905 mar, 1935 mar
1 1821 » 1 1801, y 1821
en a1 » en al, en a2, en a3
mar 1 » mar a, mar y
de a » de la, de i, de c
a 15 » al 15, 1 15, a 10

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 aborto _ 1900 dde marx en a1 ) OR ( Cabildo abierta de a 15 mar 1 1821 ))~".
• Adding a wildcard symbol may retrieve word variants: (( Cabildo aborto _ 1900 dde marx en a1 ) OR ( Cabildo abierta de a 15 mar 1 1821 ))*.