Perhaps you should try some spelling variations:
de gases » de clases
gases de » bases de, fases de, clases de
de 1990 » de 1930, de 1980, de 1999
1990 de » 1990 del, 1996 de, 1960 de
de 1860 » de 1880, de 1810, de 1820
a 1820 » a 1920, a 1850, a 1827
23 de » 2 de, 24 de, 20 de
mar a » mar y
1 23 » 1 2, 1 20, 1 3

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 de 1990 de gases de 1860 ) OR ( Cabildo abiertas 1 23 de mar a 1820 ))~".
• Adding a wildcard symbol may retrieve word variants: (( Cabildo abierta de 1990 de gases de 1860 ) OR ( Cabildo abiertas 1 23 de mar a 1820 ))*.