Perhaps you should try some spelling variations:
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"colloques, congres _ conference _ le xvie siecles" » "colloques, congres _ conference _ le xvie siecle" (Expand Search), "colloques, congres _ conference _ le xviiie siecle" (Expand Search), "colloques, congres _ conference _ le xxe siecle" (Expand Search)

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• Performing a fuzzy search may retrieve terms with similar spellings: (("colloques, congres a conference sur le xvie siecles") or ((("colloques, congres _ conference _ le xvie siecles") or ("colloques, congress _ conference sur le xvie siecles"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("colloques, congres a conference sur le xvie siecles") OR ((("colloques, congres _ conference _ le xvie siecles") OR ("colloques, congress _ conference sur le xvie siecles")))).
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