Perhaps you should try some spelling variations:
"ley 1030 de 2012" » "ley 100 de 2012", "ley 1090 de 2012", "ley 1010 de 2012", "ley 1030 de 2015", "ley 1030 de 2016"
"ley 1437 del 2006" » "ley 1480 del 2006", "ley 1448 del 2006", "ley 1437 de 2006", "ley 1438 del 2006", "ley 137 del 2006"
"ley 1944 del 2018" » "ley 1943 del 2018", "ley 1934 del 2018", "ley 1341 del 2018", "ley 14 del 2018", "ley 1164 del 2018", "ley 1944 de 2018", "ley 1944 del 2015", "ley 1944 del 2021"
"ley 1340 de 2012" » "ley 1341 de 2012", "ley 100 de 2012", "ley 1480 de 2012", "ley 1340 de 2015", "ley 1340 de 2016"

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 1030 de 2012") or ((("ley 1437 del 2006") or ("ley 1944 del 2018"))))) or ("ley 1340 de 2012"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ley 1030 de 2012") OR ((("ley 1437 del 2006") OR ("ley 1944 del 2018"))))) OR ("ley 1340 de 2012")).
• Removing quotes may allow a broader search: (((( ley 1030 de 2012 ) or ((( ley 1437 del 2006 ) or ( ley 1944 del 2018 ))))) or ( ley 1340 de 2012 )).
• Adding a wildcard symbol may retrieve word variants: (((("ley 1030 de 2012") or ((("ley 1437 del 2006") or ("ley 1944 del 2018"))))) or ("ley 1340 de 2012"))*.