Perhaps you should try some spelling variations:
"serie 31 de mal." » "serie de de mal.", "serie la de mal.", "serie el de mal.", "serie 31 de mala.", "serie 11 de mal.", "serie 1 de mal.", "serie 30 de mal."
"serie 31 de may." » "serie de de may.", "serie la de may.", "serie el de may.", "serie 31 de mayo.", "serie 31 de maya.", "serie 31 de mayor.", "serie 11 de may.", "serie 1 de may.", "serie 30 de may."
"serie 31 de man." » "serie de de man.", "serie la de man.", "serie el de man.", "serie 31 de mano.", "serie 31 de mani.", "serie 31 de mango.", "serie 11 de man.", "serie 1 de man.", "serie 30 de man."

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: (("serie 31 de mal.") or ((("serie 31 de may.") OR ("serie 31 de man."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("serie 31 de mal.") OR ((("serie 31 de may.") OR ("serie 31 de man.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"serie 31 de mal.\") or (((\"serie 31 de may.\") OR (\"serie 31 de man.\"))))".
• Removing quotes may allow a broader search: (( serie 31 de mal. ) or ((( serie 31 de may. ) OR ( serie 31 de man. )))).
• Adding a wildcard symbol may retrieve word variants: (("serie 31 de mal.") or ((("serie 31 de may.") OR ("serie 31 de man."))))*.