Perhaps you should try some spelling variations:
"ley 1437 de 2012-colombia" » "ley 1480 de 2012-colombia", "ley 1448 de 2012-colombia", "ley 14387 de 2012-colombia", "ley 1427 de 2012-colombia", "ley 13417 de 2012-colombia"
"ley 1437 de 2016-colombia" » "ley 1480 de 2016-colombia", "ley 1448 de 2016-colombia", "ley 14387 de 2016-colombia", "ley 1427 de 2016-colombia", "ley 13417 de 2016-colombia"
"ley 1413 de 2015-colombia" » "ley 115 de 2015-colombia", "ley 1341 de 2015-colombia", "ley 1480 de 2015-colombia", "ley 1443 de 2015-colombia", "ley 1403 de 2015-colombia"
"ley 1943 de 2015-colombia" » "ley 1341 de 2015-colombia", "ley 1448 de 2015-colombia", "ley 142 de 2015-colombia", "ley 1443 de 2015-colombia", "ley 1843 de 2015-colombia", "ley 1043 de 2015-colombia"
"ley 143 de 2017-colombia" » "ley 1438 de 2017-colombia", "ley 142 de 2017-colombia", "ley 1341 de 2017-colombia", "ley 143 de 2011-colombia", "ley 1443 de 2017-colombia", "ley 1843 de 2017-colombia"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("ley 143 de 2017-colombia") or ((("ley 1437 de 2012-colombia") OR ("ley 1437 de 2016-colombia"))))) or ((("ley 1413 de 2015-colombia") or ("ley 1943 de 2015-colombia"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ley 143 de 2017-colombia") OR ((("ley 1437 de 2012-colombia") OR ("ley 1437 de 2016-colombia"))))) OR ((("ley 1413 de 2015-colombia") OR ("ley 1943 de 2015-colombia"))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"ley 143 de 2017-colombia\") or (((\"ley 1437 de 2012-colombia\") OR (\"ley 1437 de 2016-colombia\"))))) or (((\"ley 1413 de 2015-colombia\") or (\"ley 1943 de 2015-colombia\"))))*".
• Removing quotes may allow a broader search: (((( ley 143 de 2017-colombia ) or ((( ley 1437 de 2012-colombia ) OR ( ley 1437 de 2016-colombia ))))) or ((( ley 1413 de 2015-colombia ) or ( ley 1943 de 2015-colombia ))))*.