Perhaps you should try some spelling variations:
"specimens philological slavicae" » "specimina philologica slavicae", "specimen pathological slavicae", "specimina philologiae slavicae", "specimens philologica slavica", "specimens philologiae slavicae", "specimens philological polemical"
"specimen histological slavicae" » "specimen pathological slavicae", "special histologic slavicae", "aspects histological slavicae", "specimen histological slices", "specimen histological staging", "specimen philologica slavica"
"specimen philologica slavicae" » "specimina philologica slavicae", "specimen pathological slavicae", "specimina philologiae slavicae", "specimen philologica slavica", "specimen philologiae slavicae", "specimen philologie slave"

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