Perhaps you should try some spelling variations:
"ley 1448 de 2012" » "ley 1098 de 2012", "ley 1341 de 2012", "ley 1480 de 2012"
"ley 1563 de 2015" » "ley 1564 de 2015", "ley 1562 de 2015", "ley 1581 de 2015"
"ley 1437 de 2016" » "ley 1480 de 2016"
"ley 1335 de 2012" » "ley 1333 de 2012", "ley 1355 de 2012", "ley 115 de 2012", "ley 1330 de 2012"
"ley 153 de 2015" » "ley 1503 de 2015", "ley 1523 de 2015", "ley 1537 de 2015", "ley 2153 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 153 de 2015") OR ("ley 1563 de 2015"))) OR ((((("ley 1448 de 2012") OR ("ley 1437 de 2016"))) OR ("ley 1335 de 2012"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"ley 153 de 2015\") OR (\"ley 1563 de 2015\"))) or (((((\"ley 1448 de 2012\") or (\"ley 1437 de 2016\"))) or (\"ley 1335 de 2012\"))))~".
• Removing quotes may allow a broader search: (((( ley 153 de 2015 ) OR ( ley 1563 de 2015 ))) or ((((( ley 1448 de 2012 ) or ( ley 1437 de 2016 ))) or ( ley 1335 de 2012 ))))~.
• Adding a wildcard symbol may retrieve word variants: (((("ley 153 de 2015") OR ("ley 1563 de 2015"))) or ((((("ley 1448 de 2012") or ("ley 1437 de 2016"))) or ("ley 1335 de 2012"))))*.