Perhaps you should try some spelling variations:
"specimina philologiae slavicae" » "specimens philological slavicae", "specimen philosophiae slavicae", "specimina philologica slavicae", "specimina philologica slavica", "specimina philologie slave"
"specimina philologica sive" » "specimens philological sive", "specimina philologica de", "specimina theologica sive", "specimina philosophicae sive"

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 philologiae slavicae") OR ("specimina philologica sive"))*.
• Removing quotes may allow a broader search: (( specimina philologiae slavicae ) or ( specimina philologica sive ))*.