Perhaps you should try some spelling variations:
"sub specie aeternitatis" » "sub species aeternitatis", "sub specimen aeternitatis", "sub spece aeternitatis", "sub specke aeternitatis"
"sub speci aeternitatis" » "sub spec aeternitatis", "sub speck aeternitatis"
"sub specic aeternitatis" » "sub specc aeternitatis", "sub speckc aeternitatis", "sub specific aeternitatis"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("sub specie aeternitatis") or ((("sub speci aeternitatis") OR ("sub specic aeternitatis"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("sub specie aeternitatis") OR ((("sub speci aeternitatis") OR ("sub specic aeternitatis"))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"sub specie aeternitatis\") or (((\"sub speci aeternitatis\") OR (\"sub specic aeternitatis\"))))*".
• Removing quotes may allow a broader search: (( sub specie aeternitatis ) or ((( sub speci aeternitatis ) OR ( sub specic aeternitatis ))))*.