Perhaps you should try some spelling variations:
"codigo d1 ley." » "codigo da ley.", "codigos de ley.", "codigo del ley.", "codigo 1 ley."
"codigo 2 ley." » "codigo y ley.", "codigo en ley.", "codigos y ley.", "codigo 1 ley.", "codigo 2 le."
"codigo e ley." » "codigo en ley.", "codigos e ley.", "codigo y ley.", "codigo e le."
"codigo de ley." » "codigo den ley.", "codigo dy ley.", "codigo de le."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("codigo de ley.") or ("codigo d1 ley."))) or ((("codigo 2 ley.") or ("codigo e ley."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("codigo de ley.") OR ("codigo d1 ley."))) OR ((("codigo 2 ley.") OR ("codigo e ley.")))).
• Removing quotes may allow a broader search: (((( codigo de ley. ) or ( codigo d1 ley. ))) or ((( codigo 2 ley. ) or ( codigo e ley. )))).
• Adding a wildcard symbol may retrieve word variants: (((("codigo de ley.") or ("codigo d1 ley."))) or ((("codigo 2 ley.") or ("codigo e ley."))))*.