Perhaps you should try some spelling variations:
derecho agraria » derecho amalia, derecho maria, derecho bancario
"derecho agrario y alimentacion." » "derecho agrario la alimentacion.", "derecho agrario de alimentacion."
"Derecho agraria y alimentario." » "Derecho agraria en alimentario."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("Derecho agraria y alimentario.") OR ("derecho agrario y alimentacion."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"Derecho agraria y alimentario.\") OR (\"derecho agrario y alimentacion.\"))".
• Removing quotes may allow a broader search: (( Derecho agraria y alimentario. ) OR ( derecho agrario y alimentacion. )).
• Adding a wildcard symbol may retrieve word variants: (("Derecho agraria y alimentario.") OR ("derecho agrario y alimentacion."))*.