Perhaps you should try some spelling variations:
decreto 135 » decreto 1335 (Expand Search), decreto 115 (Expand Search), decreto 13 (Expand Search)
"Decreto 135 de 1959 - Colombia" » "Decreto 135 de 1979 - Colombia" (Expand Search), "Decreto 135 de 1989 - Colombia" (Expand Search), "Decreto 135 de 1958 - Colombia" (Expand Search), "Decreto 15 de 1959 - Colombia" (Expand Search), "Decreto 155 de 1959 - Colombia" (Expand Search)
"Decreto 135 de 1999 - Colombia" » "Decreto 135 de 1991 - Colombia" (Expand Search), "Decreto 135 de 1995 - Colombia" (Expand Search), "Decreto 15 de 1999 - Colombia" (Expand Search), "Decreto 155 de 1999 - Colombia" (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: (("Decreto 135 de 1959 - Colombia") OR ("Decreto 135 de 1999 - Colombia"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"Decreto 135 de 1959 - Colombia\") OR (\"Decreto 135 de 1999 - Colombia\"))".
• Removing quotes may allow a broader search: (( Decreto 135 de 1959 - Colombia ) OR ( Decreto 135 de 1999 - Colombia )).
• Adding a wildcard symbol may retrieve word variants: (("Decreto 135 de 1959 - Colombia") OR ("Decreto 135 de 1999 - Colombia"))*.