Perhaps you should try some spelling variations:
specimina philologica » specimina philologiae, specimens philological
philologica slavicae » philologica slavica, philologiae slavicae, philologie slave
philosophicae sive » philosophica de, philosophical case, philosophicae _
philosophiae suae » philosophicae quas, philosophiae essay, philosophica quae

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: (( specimina philologica slavicae ) OR ( specimen ((philosophiae suae) OR (philosophicae sive)) )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( specimina philologica slavicae ) or ( specimen ((philosophiae suae) OR (philosophicae sive)) ))".
• Adding a wildcard symbol may retrieve word variants: (( specimina philologica slavicae ) or ( specimen ((philosophiae suae) OR (philosophicae sive)) ))*.