Perhaps you should try some spelling variations:
"codigo d1 ley." » "codigo de ley.", "codigo da ley.", "codigos de ley.", "codigo dy ley.", "codigo d3 ley."
"codigos 1 ley." » "codigos y ley.", "codigos _ ley.", "codigos e ley.", "codigos 3 ley."
"codigo 2 ley." » "codigo y ley.", "codigo de ley.", "codigo en ley.", "codigo 2 le.", "codigo 3 ley."
"codigo a ley." » "codigo da ley.", "codigo y ley.", "codigos la ley.", "codigo la ley.", "codigo a les."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("codigo d1 ley.") OR ("codigos 1 ley."))) OR ((("codigo 2 ley.") OR ("codigo a ley."))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"codigo d1 ley.\") OR (\"codigos 1 ley.\"))) OR (((\"codigo 2 ley.\") OR (\"codigo a ley.\"))))".
• Removing quotes may allow a broader search: (((( codigo d1 ley. ) OR ( codigos 1 ley. ))) OR ((( codigo 2 ley. ) OR ( codigo a ley. )))).
• Adding a wildcard symbol may retrieve word variants: (((("codigo d1 ley.") OR ("codigos 1 ley."))) OR ((("codigo 2 ley.") OR ("codigo a ley."))))*.