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