Perhaps you should try some spelling variations:
"specimina philologica sive" » "specimina philologiae sive", "specimens philological sive", "specimina philologica de", "specimina theologica sive", "specimina philosophicae sive"
"species pathologic slavicae" » "species philologica slavicae", "species philologiae slavicae", "specific pathologic slavicae", "species pathogenic slavicae", "specimen pathological slavicae"

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: (("species pathologic slavicae") OR ("specimina philologica sive")).
• Removing quotes may allow a broader search: (( species pathologic slavicae ) or ( specimina philologica sive )).
• Adding a wildcard symbol may retrieve word variants: (("species pathologic slavicae") or ("specimina philologica sive"))*.