Perhaps you should try some spelling variations:
"Obras completas Melanie Klein" » "Obras complet Melanie Klein" (Expand Search), "Obras complets Melanie Klein" (Expand Search)
"Obras complets Melanie Klein" » "Obras complet Melanie Klein" (Expand Search)
"obras completa melanie klein" » "obras complet melanie klein" (Expand Search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"Obras completas Melanie Klein\") OR (\"Obras complets Melanie Klein\"))) OR (\"obras completa melanie klein\"))~".
• Removing quotes may allow a broader search: (((( Obras completas Melanie Klein ) OR ( Obras complets Melanie Klein ))) OR ( obras completa melanie klein ))~.
• Adding a wildcard symbol may retrieve word variants: (((("Obras completas Melanie Klein") OR ("Obras complets Melanie Klein"))) OR ("obras completa melanie klein"))*.