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