Perhaps you should try some spelling variations:
ley 1380 » ley 1480, ley 1340, ley 1383
ley 1010 » ley 100, ley 1090, ley 1014
del 2012 » del 2016, del 2006, del 2021
1944 del » 1934 del, 14 del, 1164 del
ley 1944 » ley 1943, ley 1341, ley 1448
del 2015 » de 2015, del 2006, del 2021
del 2018 » de 2018, del 2006, del 2021
ley 1934 » ley 1341, ley 1437, ley 1438
de 2016 » de 2015
de 2012 » de 2015

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((( ley 1380 ((de 2012) OR (de 2016)) ) OR ((( ley 1934 ((del 2018) OR (del 2015)) ) OR ( ley 1944 del 2012 ))))) OR ( ley 1010 ((de 2012) OR (de 2016)) ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( ley 1380 ((de 2012) OR (de 2016)) ) or ((( ley 1934 ((del 2018) or (del 2015)) ) or ( ley 1944 del 2012 ))))) or ( ley 1010 ((de 2012) OR (de 2016)) ))~".
• Adding a wildcard symbol may retrieve word variants: (((( ley 1380 ((de 2012) OR (de 2016)) ) or ((( ley 1934 ((del 2018) or (del 2015)) ) or ( ley 1944 del 2012 ))))) or ( ley 1010 ((de 2012) OR (de 2016)) ))*.