Perhaps you should try some spelling variations:
"sub specie aeternitatis" » "sub specimen aeternitatis", "sub spece aeternitatis", "sub specke aeternitatis"
"sub species aeternitatis" » "sub specimens aeternitatis", "sub speces aeternitatis", "sub speckes 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 species 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 species 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 species aeternitatis\"))) or (((\"sub speci aeternitatis\") or (\"sub specic aeternitatis\"))))".
• Removing quotes may allow a broader search: (((( sub specie aeternitatis ) OR ( sub species aeternitatis ))) or ((( sub speci aeternitatis ) or ( sub specic aeternitatis )))).
• Adding a wildcard symbol may retrieve word variants: (((("sub specie aeternitatis") OR ("sub species aeternitatis"))) or ((("sub speci aeternitatis") or ("sub specic aeternitatis"))))*.