Perhaps you should try some spelling variations:
"specimina philologiae slavicaee" » "specimina philologica slavicaee", "specimens philological slavicaee", "specimina philologiae slavicae", "specimina philologica slavicae", "specimina philologica slavica"
"specimen philosophiae slavica" » "specimen philologiae slavicae", "specimen philosophie islamic", "specimen philosophiae publice", "specimens philosophiae slavica", "species philosophiae slavica"

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