Perhaps you should try some spelling variations:
"specimen philosophiae slavicae" » "specimen philologiae slavicae", "specimen philosophiae suae"
"specimens philosophie islamic" » "spencers philosophie islamic", "sciences philosophie islamic", "denkens philosophie islamic", "specimens philosophie analytic", "specimens philosophie bismarck"
"specimens philologica slavicae" » "specimens philological slavicae", "specimina philologica slavicae", "specimina philologiae slavicae", "specimens philologica slavica", "specimens philologiae slavicae", "specimens philologie slave"
"specimen philosophiae publice" » "specimen philosophy public"
"species philosophy islamic" » "aspects philosophy islamic", "sciences philosophy islamic", "speaking philosophy islamic", "species philosophy indic"

Try widening your search to All Fields.

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