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