Perhaps you should try some spelling variations:
"sub speckes aeternitatis" » "sub speakers aeternitatis", "sub spectres aeternitatis", "sub speeches aeternitatis"
"sub species aeternitatis" » "sub specices aeternitatis", "sub speces aeternitatis", "sub speckes aeternitatis"
"sub speci aeternitatis" » "sub specic aeternitatis", "sub spec aeternitatis", "sub speck 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 species aeternitatis") OR ("sub speckes aeternitatis"))) or ("sub speci aeternitatis"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sub species aeternitatis") OR ("sub speckes aeternitatis"))) OR ("sub speci aeternitatis"))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"sub species aeternitatis\") OR (\"sub speckes aeternitatis\"))) or (\"sub speci aeternitatis\"))*".
• Removing quotes may allow a broader search: (((( sub species aeternitatis ) OR ( sub speckes aeternitatis ))) or ( sub speci aeternitatis ))*.