Perhaps you should try some spelling variations:
ley 1530 » ley 1537, ley 130, ley 1930
ley 1330 » ley 1340, ley 1333, ley 1335
"ley 1030 de 2012" » "ley 100 de 2012", "ley 1090 de 2012", "ley 1010 de 2012", "ley 1030 de 2015", "ley 1030 de 2016"
"Ley 1530 de 2012" » "Ley 1500 de 2012", "Ley 130 de 2012", "Ley 150 de 2012", "Ley 1530 de 2015", "Ley 1530 de 2016"
"Ley 1330 de 2012" » "Ley 1330 de 2015", "Ley 1330 de 2016", "Ley 1333 de 2012", "Ley 1340 de 2012"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("Ley 1530 de 2012") OR ("Ley 1330 de 2012"))) or ("ley 1030 de 2012"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("Ley 1530 de 2012") OR ("Ley 1330 de 2012"))) OR ("ley 1030 de 2012")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"Ley 1530 de 2012\") OR (\"Ley 1330 de 2012\"))) or (\"ley 1030 de 2012\"))".
• Removing quotes may allow a broader search: (((( Ley 1530 de 2012 ) OR ( Ley 1330 de 2012 ))) or ( ley 1030 de 2012 )).
• Adding a wildcard symbol may retrieve word variants: (((("Ley 1530 de 2012") OR ("Ley 1330 de 2012"))) or ("ley 1030 de 2012"))*.