Perhaps you should try some spelling variations:
"specimens philosophiae slavicae" » "species philosophy slavicae", "species philosophers slavicae", "specimens philological slavicae", "specimens philologiae slavicae", "specimens philosophiae publice", "specimens philosophie islamic"
"specimens philosophiae suae" » "species philosophy suae", "species philosophers suae", "specimens philological suae", "specimens philosophicae sive", "specimens philosophicae quas", "specimens philosophiae essay"
"specimen philosophiae slavicae" » "specimen philologiae slavicae", "specimen philosophiae publice", "specimen philosophie islamic"
"species philosophiae slavicae" » "species philologiae slavicae", "species philosophiae publice", "species philosophie islamic", "species philosophy slavicae", "species philosophers slavicae", "spencers philosophie slavicae"
"specimens philologica slavicae" » "specimens philological slavicae", "specimina philologica slavicae", "specimina philologiae slavicae", "specimens philologica slavica", "specimens philologiae slavicae", "specimens 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 ("species philosophiae slavicae"))) OR ((((("specimens philosophiae slavicae") OR ("specimens philosophiae suae"))) OR ("specimens philologica slavicae")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"specimen philosophiae slavicae\") or (\"species philosophiae slavicae\"))) or (((((\"specimens philosophiae slavicae\") OR (\"specimens philosophiae suae\"))) or (\"specimens philologica slavicae\"))))".
• Removing quotes may allow a broader search: (((( specimen philosophiae slavicae ) or ( species philosophiae slavicae ))) or ((((( specimens philosophiae slavicae ) OR ( specimens philosophiae suae ))) or ( specimens philologica slavicae )))).
• Adding a wildcard symbol may retrieve word variants: (((("specimen philosophiae slavicae") or ("species philosophiae slavicae"))) or ((((("specimens philosophiae slavicae") OR ("specimens philosophiae suae"))) or ("specimens philologica slavicae"))))*.