Perhaps you should try some spelling variations:
"sub specie aeternitatis" » "sub speci aeternitatis"
"sub species aeternitatis" » "sub specis aeternitatis"
"sub specimen aeternitatis" » "sub specimens aeternitatis"
"sub specic aeternitatis" » "sub speci 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 specimen aeternitatis") OR ("sub species aeternitatis"))))) or ("sub specic aeternitatis"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sub specie aeternitatis") OR ((("sub specimen aeternitatis") OR ("sub species aeternitatis"))))) OR ("sub specic aeternitatis")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"sub specie aeternitatis\") or (((\"sub specimen aeternitatis\") OR (\"sub species aeternitatis\"))))) or (\"sub specic aeternitatis\"))".
• Removing quotes may allow a broader search: (((( sub specie aeternitatis ) or ((( sub specimen aeternitatis ) OR ( sub species aeternitatis ))))) or ( sub specic aeternitatis )).
• Adding a wildcard symbol may retrieve word variants: (((("sub specie aeternitatis") or ((("sub specimen aeternitatis") OR ("sub species aeternitatis"))))) or ("sub specic aeternitatis"))*.