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