Perhaps you should try some spelling variations:
abierta a » abierta y, abierta de, abierta en
un mundo » el mundo
mundo a » mundo la, mundo las, mundo de
a 1820 » a 1920, a 1850, a 1827
17 de » 1 de, 12 de
mar a » mar y
c un » c una, ci un, a un
a 15 » al 15, 1 15, a 10
a 17 » ac 17, al 17, a 7

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 c un mundo a 15 ) OR ( Cabildo abierta a 17 de mar a 1820 ))~".
• Adding a wildcard symbol may retrieve word variants: (( Cabildo abiertas 1 c un mundo a 15 ) OR ( Cabildo abierta a 17 de mar a 1820 ))*.