Perhaps you should try some spelling variations:
"ley 1438 de 2016" » "ley 1098 de 2016", "ley 1480 de 2016", "ley 142 de 2016"
"ley 1437 de 2012" » "ley 1480 de 2012"
"ley 1448 de 2012" » "ley 1098 de 2012", "ley 1341 de 2012", "ley 1480 de 2012"
"ley 1335 de 2012" » "ley 1333 de 2012", "ley 1355 de 2012", "ley 115 de 2012", "ley 1330 de 2012"
"ley 1978 de 2012" » "ley 1098 de 2012", "ley 1955 de 2012", "ley 1278 de 2012"
"ley 1030 de 2015" » "ley 100 de 2015", "ley 1090 de 2015", "ley 1010 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 1438 de 2016") or ((("ley 1437 de 2012") OR ("ley 1448 de 2012"))))) or ("ley 1335 de 2012"))) or ("ley 1978 de 2012"))) or ("ley 1030 de 2015"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((((("ley 1438 de 2016") OR ((("ley 1437 de 2012") OR ("ley 1448 de 2012"))))) OR ("ley 1335 de 2012"))) OR ("ley 1978 de 2012"))) OR ("ley 1030 de 2015")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((((\"ley 1438 de 2016\") or (((\"ley 1437 de 2012\") OR (\"ley 1448 de 2012\"))))) or (\"ley 1335 de 2012\"))) or (\"ley 1978 de 2012\"))) or (\"ley 1030 de 2015\"))".
• Removing quotes may allow a broader search: (((((((( ley 1438 de 2016 ) or ((( ley 1437 de 2012 ) OR ( ley 1448 de 2012 ))))) or ( ley 1335 de 2012 ))) or ( ley 1978 de 2012 ))) or ( ley 1030 de 2015 )).
• Adding a wildcard symbol may retrieve word variants: (((((((("ley 1438 de 2016") or ((("ley 1437 de 2012") OR ("ley 1448 de 2012"))))) or ("ley 1335 de 2012"))) or ("ley 1978 de 2012"))) or ("ley 1030 de 2015"))*.