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