Perhaps you should try some spelling variations:
"specimens philosophiae slavicae" » "species philosophy slavicae", "species philosophers slavicae", "specimens philological slavicae", "specimens philosophiae publice", "specimens philosophiae suae", "specimens philosophie islamic", "speciess philosophiae slavicae"
"specimen philosophiae slavicae" » "specimen philosophiae publice", "specimen philosophiae suae", "specimen philosophie islamic", "species philosophiae slavicae"
"specimens philologica slavicae" » "specimens philological slavicae", "specimina philologica slavicae", "specimina philologiae slavicae", "specimens philologica slavica", "speciess philologica slavicae"
"specimens philologica sive" » "specimens philological sive", "specimina philologica sive", "specimina philologiae sive", "specimens philologica de", "specimens theologica sive", "specimens philosophicae sive", "speciess philologica sive"
"specimens philologiae slavicae" » "specimens philological slavicae", "specimina philologiae slavicae", "specimina philologica slavicae", "specimens philologica slavica", "speciess philologiae slavicae"
"specimens philologie slave" » "specimens philological slave", "specimina philologiae slave", "specimina philologica slave", "speciess philologie slave"

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