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

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (("specimen philologica sive") OR ((("specimens philological slavicae") OR ("specimens philologiae slavicae")))).
• Removing quotes may allow a broader search: (( specimen philologica sive ) or ((( specimens philological slavicae ) or ( specimens philologiae slavicae )))).
• Adding a wildcard symbol may retrieve word variants: (("specimen philologica sive") or ((("specimens philological slavicae") or ("specimens philologiae slavicae"))))*.