Perhaps you should try some spelling variations:
tesis del » tesis de, sintesis del, protesis del
de tesis » la tesis, de temas
de marco » de marzo, el marco, de mar
marco r » marco de
del 20 » del 90, del 80
r 1887 » a 1887, r 1857, r 1880
11 de » 12 de, 17 de
15 de » 1 de, 12 de, 17 de
y 11 » y 116, 9 11, v 11

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 aborto y 11 de tesis del 20 ) OR ( Cabildo abierta de 15 de marco r 1887 ))~".
• Adding a wildcard symbol may retrieve word variants: (( Cabildo aborto y 11 de tesis del 20 ) OR ( Cabildo abierta de 15 de marco r 1887 ))*.