Perhaps you should try some spelling variations:
"ley 19437 de 2010-colombia" » "ley 1437 de 2010-colombia", "ley 1943 de 2010-colombia", "ley 1.437 de 2010-colombia", "ley 19437 de 2015-colombia", "ley 19437 de 2012-colombia", "ley 19437 de 2011-colombia"
"ley 1443 de 2010-colombia" » "ley 1448 de 2010-colombia", "ley 1943 de 2010-colombia", "ley 1843 de 2010-colombia", "ley 1443 de 2015-colombia", "ley 1443 de 2012-colombia", "ley 1443 de 2011-colombia"
"ley 1413 de 2010-colombia" » "ley 115 de 2010-colombia", "ley 1341 de 2010-colombia", "ley 1480 de 2010-colombia", "ley 1413 de 2015-colombia", "ley 1413 de 2012-colombia", "ley 1413 de 2011-colombia", "ley 1403 de 2010-colombia"
"ley 143 de 2016-colombia" » "ley 1437 de 2016-colombia", "ley 1438 de 2016-colombia", "ley 1943 de 2016-colombia", "ley 143 de 2015-colombia", "ley 1843 de 2016-colombia"

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 1443 de 2010-colombia") OR ("ley 1413 de 2010-colombia"))) or ("ley 19437 de 2010-colombia"))) or ("ley 143 de 2016-colombia"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((("ley 1443 de 2010-colombia") OR ("ley 1413 de 2010-colombia"))) OR ("ley 19437 de 2010-colombia"))) OR ("ley 143 de 2016-colombia")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"ley 1443 de 2010-colombia\") OR (\"ley 1413 de 2010-colombia\"))) or (\"ley 19437 de 2010-colombia\"))) or (\"ley 143 de 2016-colombia\"))".
• Removing quotes may allow a broader search: (((((( ley 1443 de 2010-colombia ) OR ( ley 1413 de 2010-colombia ))) or ( ley 19437 de 2010-colombia ))) or ( ley 143 de 2016-colombia )).
• Adding a wildcard symbol may retrieve word variants: (((((("ley 1443 de 2010-colombia") OR ("ley 1413 de 2010-colombia"))) or ("ley 19437 de 2010-colombia"))) or ("ley 143 de 2016-colombia"))*.