Perhaps you should try some spelling variations:
"ley 15630 de 2015" » "ley 1563 de 2015", "ley 1530 de 2015", "ley 1564 de 2015"
"ley 1500 de 2016" » "ley 100 de 2016", "ley 1508 de 2016", "ley 1530 de 2016"
"ley 1503 de 2016" » "ley 1563 de 2016", "ley 1508 de 2016", "ley 1523 de 2016", "ley 103 de 2016", "ley 1403 de 2016"
"ley 1537 de 2015" » "ley 1437 de 2015", "ley 1581 de 2015", "ley 1438 de 2015", "ley 137 de 2015", "ley 1507 de 2015", "ley 15637 de 2015", "ley 15237 de 2015", "ley 12537 de 2015"
"ley 153 de 2015" » "ley 1563 de 2015", "ley 1523 de 2015", "ley 1253 de 2015", "ley 2153 de 2015"

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 1500 de 2016") or ("ley 1503 de 2016"))) or ((((("ley 15630 de 2015") or ("ley 1537 de 2015"))) or ("ley 153 de 2015"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ley 1500 de 2016") OR ("ley 1503 de 2016"))) OR ((((("ley 15630 de 2015") OR ("ley 1537 de 2015"))) OR ("ley 153 de 2015")))).
• Removing quotes may allow a broader search: (((( ley 1500 de 2016 ) or ( ley 1503 de 2016 ))) or ((((( ley 15630 de 2015 ) or ( ley 1537 de 2015 ))) or ( ley 153 de 2015 )))).
• Adding a wildcard symbol may retrieve word variants: (((("ley 1500 de 2016") or ("ley 1503 de 2016"))) or ((((("ley 15630 de 2015") or ("ley 1537 de 2015"))) or ("ley 153 de 2015"))))*.