Perhaps you should try some spelling variations:
"serie 11 de may." » "serie 31 de may.", "serie 100 de may.", "serie de de may.", "serie 311 de may.", "serie e1 de may.", "serie g1 de may.", "serie 11 de maya.", "serie 11 de mal.", "serie 11 de man.", "serie 1y de may.", "serie 1_ de may.", "serie 1o de may."
"serie a de mayo." » "serie la de mayo.", "serie las de mayo.", "serie de de mayo.", "serie a de mayao.", "serie a de malo.", "serie a de mano.", "serie y de mayo.", "serie _ de mayo.", "serie o de mayo."
"serie 1 de may." » "serie 31 de may.", "serie e de may.", "serie g de may.", "serie 1 de maya.", "serie 1 de mal.", "serie 1 de man.", "serie y de may.", "serie _ de may.", "serie o de may."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("serie a de mayo.") or ((("serie 1 de may.") or ("serie 11 de may."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("serie a de mayo.") OR ((("serie 1 de may.") OR ("serie 11 de may."))))*.
• Removing quotes may allow a broader search: (( serie a de mayo. ) or ((( serie 1 de may. ) or ( serie 11 de may. ))))*.