Perhaps you should try some spelling variations:
philologica slavicae » philologica slavica, philologie slave
specimen philologiae » specimina philologiae, specimens philological, specimen philosophiae
philologiae slavicae » philologica slavica, philologie slave
philologica sive » philologica de, theologica sive, philosophicae sive

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 (philologica sive)) ) OR ( specimen philologiae slavicae ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( specimina ((philologica slavicae) OR (philologica sive)) ) or ( specimen philologiae slavicae ))*".