Perhaps you should try some spelling variations:
"viticoltura storia dei it\iccu\cfi8468" » "viticoltura storia del it\iccu\cfi8468" (Expand Search), "viticoltura storia di it\iccu\cfi8468" (Expand Search), "viticoltura storia e it\iccu\cfi8468" (Expand Search)
"viticoltura storia sec it\iccu\cfi8468" » "viticoltura storia del it\iccu\cfi8468" (Expand Search), "viticoltura storia e it\iccu\cfi8468" (Expand Search)

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• Performing a fuzzy search may retrieve terms with similar spellings: (("viticoltura storia dei it\iccu\cfi8468") OR ("viticoltura storia sec it\iccu\cfi8468"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"viticoltura storia dei it\iccu\cfi8468\") OR (\"viticoltura storia sec it\iccu\cfi8468\"))".
• Removing quotes may allow a broader search: (( viticoltura storia dei it\iccu\cfi8468 ) OR ( viticoltura storia sec it\iccu\cfi8468 )).
• Adding a wildcard symbol may retrieve word variants: (("viticoltura storia dei it\iccu\cfi8468") OR ("viticoltura storia sec it\iccu\cfi8468"))*.