Perhaps you should try some spelling variations:
histological slavicae » histological slices, philologica slavicae, philologica slavica
specimina philologiae » specimina philologica, specimens philological, specimen philosophiae
histological staging » histological staining, histological typing, histological grading
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 ((histological slavicae) OR (histological staging)) ) OR ( specimina philologiae slavicae )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( specimen ((histological slavicae) OR (histological staging)) ) or ( specimina philologiae slavicae ))".
• Adding a wildcard symbol may retrieve word variants: (( specimen ((histological slavicae) OR (histological staging)) ) or ( specimina philologiae slavicae ))*.