Perhaps you should try some spelling variations:
"ley 1480 de 2015" » "ley 100 de 2015"
"ley 1378 del 2012" » "ley 1978 del 2012", "ley 1278 del 2012", "ley 1328 del 2012", "ley 137 del 2012", "ley 1375 del 2012", "ley 1378 de 2012", "ley 1378 del 2015", "ley 1378 del 2016"
"ley 1378 del 2018" » "ley 1978 del 2018", "ley 1278 del 2018", "ley 1328 del 2018", "ley 137 del 2018", "ley 1375 del 2018", "ley 1378 de 2018", "ley 1378 del 2015", "ley 1378 del 2006"
"ley 1377 de 2016" » "ley 1379 de 2016", "ley 1341 de 2016", "ley 1437 de 2016", "ley 1477 de 2016"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("ley 1480 de 2015") or ((((("ley 1378 del 2012") OR ("ley 1378 del 2018"))) or ("ley 1377 de 2016"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("ley 1480 de 2015") OR ((((("ley 1378 del 2012") OR ("ley 1378 del 2018"))) OR ("ley 1377 de 2016")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"ley 1480 de 2015\") or (((((\"ley 1378 del 2012\") OR (\"ley 1378 del 2018\"))) or (\"ley 1377 de 2016\"))))".
• Removing quotes may allow a broader search: (( ley 1480 de 2015 ) or ((((( ley 1378 del 2012 ) OR ( ley 1378 del 2018 ))) or ( ley 1377 de 2016 )))).
• Adding a wildcard symbol may retrieve word variants: (("ley 1480 de 2015") or ((((("ley 1378 del 2012") OR ("ley 1378 del 2018"))) or ("ley 1377 de 2016"))))*.