Perhaps you should try some spelling variations:
"poder mexico, de duo editorial." » "poder mexico, de red editorial.", "poder mexico, de xxi editorial.", "power mexico, de duo editorial.", "poderes mexico, de duo editorial.", "modern mexico, de duo editorial.", "poder mexico, de d.o editorial.", "poder mexico, de duelo editorial.", "poder mexico, de dubos editorial."
"poder mexico, de de editorial." » "power mexico, de de editorial.", "poderes mexico, de de editorial.", "modern mexico, de de editorial.", "poder mexico, de del editorial.", "poder mexico, de red editorial.", "poder mexico, de la editorial.", "poder mexico, de fe editorial.", "poder mexico, de di editorial."

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("poder mexico, de de editorial.") OR ("poder mexico, de duo editorial."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"poder mexico, de de editorial.\") OR (\"poder mexico, de duo editorial.\"))".
• Removing quotes may allow a broader search: (( poder mexico, de de editorial. ) OR ( poder mexico, de duo editorial. )).
• Adding a wildcard symbol may retrieve word variants: (("poder mexico, de de editorial.") OR ("poder mexico, de duo editorial."))*.