Perhaps you should try some spelling variations:
del arroyos » del arroyo, tres arroyos
abierto en » abierta en, abierto y
arroyos a » arroyos d, apoyos a, arroyo la
da terra » la tierra, de tierra
terra op » terra o, terra los, terra di
1973 da » 1973 de, 1973 una
1 1973 » 1 1983, 1 1993, y 1973
16 del » 146 del, 16 de, 11 del
a 1886 » a 1887, a 1883, a 1880
op 28 » op 27, op 24, op 26
en 16 » el 16, en 1, en 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 abiertas 1 1973 da terra op 28 ) OR ( Cabildo abierto en 16 del arroyos a 1886 ))~".
• Adding a wildcard symbol may retrieve word variants: (( Cabildo abiertas 1 1973 da terra op 28 ) OR ( Cabildo abierto en 16 del arroyos a 1886 ))*.