Perhaps you should try some spelling variations:
"sub specimen aeternitatis" » "sub specimens aeternitatis", "sub species aeternitatis", "sub specmen aeternitatis", "sub speckmen aeternitatis"
"sub specic aeternitatis" » "sub specific aeternitatis", "sub specc aeternitatis", "sub speckc aeternitatis"
"sub speci 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 specimen aeternitatis") or ((("sub specic aeternitatis") OR ("sub speci aeternitatis"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("sub specimen aeternitatis") OR ((("sub specic aeternitatis") OR ("sub speci aeternitatis")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"sub specimen aeternitatis\") or (((\"sub specic aeternitatis\") OR (\"sub speci aeternitatis\"))))".
• Removing quotes may allow a broader search: (( sub specimen aeternitatis ) or ((( sub specic aeternitatis ) OR ( sub speci aeternitatis )))).
• Adding a wildcard symbol may retrieve word variants: (("sub specimen aeternitatis") or ((("sub specic aeternitatis") OR ("sub speci aeternitatis"))))*.