Perhaps you should try some spelling variations:
"ley 1934 de 2012" » "ley 1341 de 2012", "ley 1437 de 2012", "ley 1438 de 2012", "ley 1934 del 2012", "ley 134 de 2012", "ley 1834 de 2012", "ley 1934 de 2016"
"ley 1537 de 2015" » "ley 1437 de 2015", "ley 1581 de 2015", "ley 1438 de 2015", "ley 153 de 2015", "ley 137 de 2015"
ley 1500 » ley 1503, ley 1530, ley 1480
ley 1508 » ley 1503, ley 1098, ley 1581
ley 1523 » ley 1563, ley 1503, ley 1581

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 1934 de 2012") or ("ley 1537 de 2015"))) or ("((((ley 1500) or (((ley 1508) OR (ley 100))))) or (ley 1523)) de 2012"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ley 1934 de 2012") OR ("ley 1537 de 2015"))) OR ("((((ley 1500) or (((ley 1508) OR (ley 100))))) or (ley 1523)) de 2012")).
• Removing quotes may allow a broader search: (((( ley 1934 de 2012 ) or ( ley 1537 de 2015 ))) or ( ((((ley 1500) or (((ley 1508) OR (ley 100))))) or (ley 1523)) de 2012 )).
• Adding a wildcard symbol may retrieve word variants: (((("ley 1934 de 2012") or ("ley 1537 de 2015"))) or ("((((ley 1500) or (((ley 1508) OR (ley 100))))) or (ley 1523)) de 2012"))*.