Perhaps you should try some spelling variations:
"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 slavicae" » "species philosophy classical", "species philosophy logical", "species philosophy islamic", "aspects philosophy slavicae", "speaking philosophy slavicae", "theories philosophy slavicae"
"sciences philosophy slavicae" » "sciences philosophy classical", "sciences philosophy logical", "sciences philosophy islamic", "science philosophy slavicae"

Try widening your search to All Fields.

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 philosophy slavicae") OR ("sciences philosophy slavicae"))) OR ("specimens philologica slavicae")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"specimen philosophiae slavicae\") or (((((\"species philosophy slavicae\") OR (\"sciences philosophy slavicae\"))) or (\"specimens philologica slavicae\"))))".
• Removing quotes may allow a broader search: (( specimen philosophiae slavicae ) or ((((( species philosophy slavicae ) OR ( sciences philosophy slavicae ))) or ( specimens philologica slavicae )))).
• Adding a wildcard symbol may retrieve word variants: (("specimen philosophiae slavicae") or ((((("species philosophy slavicae") OR ("sciences philosophy slavicae"))) or ("specimens philologica slavicae"))))*.