Perhaps you should try some spelling variations:
"specimina philologica slavica" » "specimens philological slavica"
"specimina philologiae slavicae" » "specimens philological slavicae", "specimen philosophiae slavicae", "specimina philologica slavicae", "specimina 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: (("specimina philologica slavica") OR ("specimina philologiae slavicae")).
• Removing quotes may allow a broader search: (( specimina philologica slavica ) or ( specimina philologiae slavicae )).
• Adding a wildcard symbol may retrieve word variants: (("specimina philologica slavica") or ("specimina philologiae slavicae"))*.