Perhaps you should try some spelling variations:
"specimens philological slave" » "specimen histological slave", "specimina philologiae slave", "species physiological slave", "specimens philologica sive", "specimens philologica slavicae", "specimens philological essays"
"specimina philologica slave" » "specimina philologiae slave", "specimina philologica sive", "specimina philologica slavicae", "specimina philologica slavica"
"specimen pathological slave" » "specific pathological slave", "species pathologic slave", "specimen histological slave", "specimen pathological state", "specimen pathological stage", "specimen pathological states"
"specimens philologie slave" » "specimina philologiae slave", "specimen philosophiae slave", "specimens phyllodes slave"

Try widening your search to All Fields.

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• If you are trying to use Boolean operators, they must be ALL CAPS: (("specimina philologica slave") OR ((((("specimens philological slave") OR ("specimens philologie slave"))) OR ("specimen pathological slave")))).
• Removing quotes may allow a broader search: (( specimina philologica slave ) or ((((( specimens philological slave ) or ( specimens philologie slave ))) or ( specimen pathological slave )))).
• Adding a wildcard symbol may retrieve word variants: (("specimina philologica slave") or ((((("specimens philological slave") or ("specimens philologie slave"))) or ("specimen pathological slave"))))*.