Perhaps you should try some spelling variations:
abierta et » abierto en, abierta 5
mexico de » lexico de, mexico df, mexico fce
mar del » maria del
de 1810 » de 1880, de 1816
de mar » del mar
del 20 » del 90, del 60
al de » mal de
10 de » 1 de, 12 de, 11 de
a 10 » 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 abierta et al de mar del 20 ) OR ( Cabildo abierta a 10 de mexico de 1810 ))~".
• Adding a wildcard symbol may retrieve word variants: (( Cabildo abierta et al de mar del 20 ) OR ( Cabildo abierta a 10 de mexico de 1810 ))*.