Perhaps you should try some spelling variations:
"specimens philosophiae slavicae" » "species philosophers slavicae", "specimens philological slavicae", "specimina philologiae slavicae", "specimens philologiae slavicae", "specimens philosophiae publice", "specimens philosophiae suae"
"specimen philosophiae slavicae" » "specimen philologiae slavicae", "specimen philosophiae publice", "specimen philosophiae suae"
"specimens philologica slavicae" » "specimens philological slavicae", "specimina philologica slavicae", "specimina philologiae slavicae", "specimens philologica slavica", "specimens philologiae slavicae", "specimens philologie slave"
"species philosophy classical" » "sciences philosophy classical", "speaking philosophy classical", "theories philosophy classical"
"aspects philosophy classical" » "arts philosophy classical", "parts philosophy classical", "meets philosophy classical"

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: "((\"specimen philosophiae slavicae\") OR (((((\"specimens philosophiae slavicae\") OR (((\"species philosophy classical\") OR (\"aspects philosophy classical\"))))) OR (\"specimens philologica slavicae\"))))".
• Removing quotes may allow a broader search: (( specimen philosophiae slavicae ) OR ((((( specimens philosophiae slavicae ) OR ((( species philosophy classical ) OR ( aspects philosophy classical ))))) OR ( specimens philologica slavicae )))).
• Adding a wildcard symbol may retrieve word variants: (("specimen philosophiae slavicae") OR ((((("specimens philosophiae slavicae") OR ((("species philosophy classical") OR ("aspects philosophy classical"))))) OR ("specimens philologica slavicae"))))*.