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 radical", "aspects philosophy slavicae", "sciences philosophy slavicae", "speaking philosophy slavicae"
"species philosophy islamic" » "aspects philosophy islamic", "sciences philosophy islamic", "speaking philosophy islamic", "species philosophy indic"

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 ((((("specimens philosophiae slavicae") OR ((("species philosophy slavicae") OR ("species philosophy islamic"))))) OR ("specimens philologiae slavicae"))))*.
• 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 (\"species philosophy islamic\"))))) or (\"specimens philologiae slavicae\"))))*".
• Removing quotes may allow a broader search: (( specimen philosophiae slavicae ) or ((((( specimens philosophiae slavicae ) or ((( species philosophy slavicae ) OR ( species philosophy islamic ))))) or ( specimens philologiae slavicae ))))*.