Perhaps you should try some spelling variations:
teoria ii » teoricas ii, memoria ii, teoria de
y teoria » la teoria
a 1987 » a 1887, a 1907, a 1957
de 13 » de 132, de 15
17 de » 1 de, 12 de
mar a » mar y
13 y » 1 y, 3 y, 10 y
ii 5 » ii y, ii _, ii x
y 17 » y 10, 1 17, y 13

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 13 y teoria ii 5 ) OR ( Cabildo aborto y 17 de mar a 1987 ))~".
• Adding a wildcard symbol may retrieve word variants: (( Cabildo abierta de 13 y teoria ii 5 ) OR ( Cabildo aborto y 17 de mar a 1987 ))*.