Perhaps you should try some spelling variations:
tesis del » tesis de, sintesis del, protesis del
de marco » de marzo, el marco, de mar
marco r » marco de
del 20 » del 80, del 90
r 1887 » a 1887, r 1857, r 1881
2 la » y la, a la, 1 la
de 2 » de i, de c, de _
2 de » y de, 1 de

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 2 la tesis del 20 ) OR ( Cabildo abierta de 2 de marco r 1887 ))~".
• Adding a wildcard symbol may retrieve word variants: (( Cabildo aborto y 2 la tesis del 20 ) OR ( Cabildo abierta de 2 de marco r 1887 ))*.