Perhaps you should try some spelling variations:
"ley de ingreso minimo de integracion" » "ley de ingresos minimo de integracion" (Expand Search), "ley del ingreso minimo de integracion" (Expand Search), "ley el ingreso minimo de integracion" (Expand Search)
"ley de ingreso minimo la integracion" » "ley de ingresos minimo la integracion" (Expand Search), "ley del ingreso minimo la integracion" (Expand Search), "ley el ingreso minimo la integracion" (Expand Search), "ley de ingreso minimo a integracion" (Expand Search), "ley de ingreso minimo en integracion" (Expand Search), "ley de ingreso minimo y integracion" (Expand Search)

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 de ingreso minimo de integracion") OR ("ley de ingreso minimo la integracion"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"ley de ingreso minimo de integracion\") OR (\"ley de ingreso minimo la integracion\"))".
• Removing quotes may allow a broader search: (( ley de ingreso minimo de integracion ) OR ( ley de ingreso minimo la integracion )).
• Adding a wildcard symbol may retrieve word variants: (("ley de ingreso minimo de integracion") OR ("ley de ingreso minimo la integracion"))*.