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