Perhaps you should try some spelling variations:
"specimens philosophicae sive" » "specimens philological sive", "specimens philosophica de", "specimens philosophical case", "specimens philosophicae _", "speciess philosophicae sive"
"specimens philosophiae slavicae" » "species philosophy slavicae", "species philosophers slavicae", "specimens philological slavicae", "specimens philologiae slavicae", "specimens philosophiae publice", "specimens philosophiae suae", "speciess philosophiae slavicae"
"specimen philosophiae slavicae" » "specimen philologiae slavicae", "specimen philosophiae publice", "specimen philosophiae suae", "species philosophiae slavicae"
"specimina philologica slavicae" » "specimina philologiae slavicae", "specimens philological slavicae", "specimina philologica slavica", "specimina philologie slave"

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 philosophiae slavicae") OR ((((("specimens philosophiae slavicae") OR ("specimens philosophicae sive"))) OR ("specimina philologica slavicae")))).
• Removing quotes may allow a broader search: (( specimen philosophiae slavicae ) or ((((( specimens philosophiae slavicae ) or ( specimens philosophicae sive ))) or ( specimina philologica slavicae )))).
• Adding a wildcard symbol may retrieve word variants: (("specimen philosophiae slavicae") or ((((("specimens philosophiae slavicae") or ("specimens philosophicae sive"))) or ("specimina philologica slavicae"))))*.