Perhaps you should try some spelling variations:
"specimina philologica slavicae" » "specimina philologiae slavicae", "specimens philological slavicae", "specimina philologica slavica", "specimina philologie slave"
"specimen philosophiae publice" » "specimen philosophy public"

Try widening your search to All Fields.

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• If you are trying to use Boolean operators, they must be ALL CAPS: (("specimina philologica slavicae") OR ("specimen philosophiae publice")).
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