Perhaps you should try some spelling variations:
"ley 15230 de 2016" » "ley 1523 de 2016", "ley 1530 de 2016", "ley 1563 de 2016", "ley 1330 de 2016"
"ley 1581 de 2012" » "ley 1341 de 2012", "ley 1480 de 2012"
"ley 1581 de 2015" » "ley 1341 de 2015", "ley 1480 de 2015"
"ley 153 de 2012" » "ley 1563 de 2012", "ley 1503 de 2012", "ley 1523 de 2012", "ley 2153 de 2012"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((((("ley 1581 de 2012") OR ("ley 1581 de 2015"))) or ("ley 153 de 2012"))) or ("ley 15230 de 2016"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((("ley 1581 de 2012") OR ("ley 1581 de 2015"))) OR ("ley 153 de 2012"))) OR ("ley 15230 de 2016"))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"ley 1581 de 2012\") OR (\"ley 1581 de 2015\"))) or (\"ley 153 de 2012\"))) or (\"ley 15230 de 2016\"))*".
• Removing quotes may allow a broader search: (((((( ley 1581 de 2012 ) OR ( ley 1581 de 2015 ))) or ( ley 153 de 2012 ))) or ( ley 15230 de 2016 ))*.