Perhaps you should try some spelling variations:
"specimina philologica slavea" » "specimens philological slavea", "specimina philologica slavica", "specimina philologica slavicae", "specimina philologie slave"
"specimina philologiae slavicae" » "specimens philological slavicae", "specimina philologica slavicae", "specimina philologica slavica", "specimina philologie slave"
"specimen philosophiae slavicae" » "specimen philosophiae publice", "specimen philologica slavicae", "specimen philosophiae suae"

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