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.

• 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"))*.