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 spedie aeternitatis"
"sub speci aeternitatis" » "sub specic aeternitatis", "sub speck aeternitatis", "sub specki aeternitatis", "sub spei aeternitatis", "sub spedi aeternitatis"
"sub spec aeternitatis" » "sub speck aeternitatis", "sub spe aeternitatis", "sub sped 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 spec aeternitatis") OR ("sub pec aeternitatis"))))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("sub specie aeternitatis") OR ((("sub speci aeternitatis") OR ((("sub spec aeternitatis") OR ("sub pec aeternitatis")))))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"sub specie aeternitatis\") or (((\"sub speci aeternitatis\") or (((\"sub spec aeternitatis\") OR (\"sub pec aeternitatis\"))))))".
• Removing quotes may allow a broader search: (( sub specie aeternitatis ) or ((( sub speci aeternitatis ) or ((( sub spec aeternitatis ) OR ( sub pec aeternitatis )))))).
• Adding a wildcard symbol may retrieve word variants: (("sub specie aeternitatis") or ((("sub speci aeternitatis") or ((("sub spec aeternitatis") OR ("sub pec aeternitatis"))))))*.