Perhaps you should try some spelling variations:
"specimens philological slavicae" » "specimina philologica slavicae", "specimen histological slavicae", "specimen pathological slavicae", "specimens philologica slavica", "specimens philological polemical", "specimens philological satirical"
"specimens philologiae slavicae" » "specimina philologiae slavicae", "specimen philosophiae slavicae", "specimina philologica slavicae", "specimens philologica slavica", "specimens philologie slave"
"specimen philologica slavicae" » "specimina philologica slavicae", "specimen histological slavicae", "specimen pathological slavicae", "specimen philologica slavica", "specimen philologie slave", "specimen philologica sive"

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