Perhaps you should try some spelling variations:
leyes corts » leyes claras (Expand Search), leyes peores (Expand Search), reyes coords (Expand Search)
"Informe especial de leyes Corts Valencianes." » "Informe especial de ley Corts Valencianes." (Expand Search)
"Informe especial de les Corts Valencianes." » "Informe especial de ley Corts Valencianes." (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: (("Informe especial de les Corts Valencianes.") OR ("Informe especial de leyes Corts Valencianes."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"Informe especial de les Corts Valencianes.\") OR (\"Informe especial de leyes Corts Valencianes.\"))".
• Removing quotes may allow a broader search: (( Informe especial de les Corts Valencianes. ) OR ( Informe especial de leyes Corts Valencianes. )).
• Adding a wildcard symbol may retrieve word variants: (("Informe especial de les Corts Valencianes.") OR ("Informe especial de leyes Corts Valencianes."))*.