Perhaps you should try some spelling variations:
"specimens philosophiae slavicae" » "specimen philosophiae slavicae", "species philosophy slavicae", "species philosophers slavicae", "specimens philologiae slavicae", "specimens philosophiae publice", "specimens philosophiae suae"
"species philosophiae slavicae" » "species philologiae slavicae", "species philosophiae publice", "species philosophiae suae", "specimen philosophiae slavicae", "species philosophy slavicae", "species philosophers 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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"species philosophiae slavicae\") OR (((\"specimens philosophiae slavicae\") OR (\"specimina philologica slavicae\"))))".
• Removing quotes may allow a broader search: (( species philosophiae slavicae ) OR ((( specimens philosophiae slavicae ) OR ( specimina philologica slavicae )))).
• Adding a wildcard symbol may retrieve word variants: (("species philosophiae slavicae") OR ((("specimens philosophiae slavicae") OR ("specimina philologica slavicae"))))*.