Perhaps you should try some spelling variations:
"sub specie aeternitatis" » "sub species aeternitatis", "sub speci aeternitatis", "sub specic aeternitatis", "sub speciie aeternitatis", "sub speckie aeternitatis", "sub speie aeternitatis"
"sub speciies aeternitatis" » "sub specifies aeternitatis", "sub species aeternitatis", "sub specimens aeternitatis", "sub speciiies aeternitatis", "sub speckiies aeternitatis", "sub speiies aeternitatis"
"sub spec aeternitatis" » "sub speci aeternitatis", "sub speck aeternitatis", "sub spe 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 speciies aeternitatis"))) or ("sub spec aeternitatis"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sub specie aeternitatis") OR ("sub speciies aeternitatis"))) OR ("sub spec aeternitatis")).
• Removing quotes may allow a broader search: (((( sub specie aeternitatis ) or ( sub speciies aeternitatis ))) or ( sub spec aeternitatis )).
• Adding a wildcard symbol may retrieve word variants: (((("sub specie aeternitatis") or ("sub speciies aeternitatis"))) or ("sub spec aeternitatis"))*.