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

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