Perhaps you should try some spelling variations:
"sub speck aeternitatis" » "sub speak aeternitatis", "sub speek aeternitatis", "sub spec aeternitatis"
"sub specice aeternitatis" » "sub specic aeternitatis", "sub specimen aeternitatis", "sub specicce aeternitatis", "sub specce aeternitatis"
"sub speci aeternitatis" » "sub specic aeternitatis", "sub spec 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 speck aeternitatis") or ("sub specice aeternitatis"))) or ("sub speci aeternitatis"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sub speck aeternitatis") OR ("sub specice aeternitatis"))) OR ("sub speci aeternitatis"))*.
• Removing quotes may allow a broader search: (((( sub speck aeternitatis ) or ( sub specice aeternitatis ))) or ( sub speci aeternitatis ))*.