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