Perhaps you should try some spelling variations:
specimens philosophiae » specimen philosophiae, species philosophy, species philosophers
philosophiae slavicae » philosophiae publice, philologica slavicae, philosophiae suae
specimen philologiae » specimina philologiae, specimens philological, specimen philosophiae
philologiae slavicae » philologica slavicae, philologica slavica, philologie slave

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 philologiae slavicae ) OR ( specimens philosophiae slavicae )).
• Adding a wildcard symbol may retrieve word variants: (( specimen philologiae slavicae ) or ( specimens philosophiae slavicae ))*.