Perhaps you should try some spelling variations:
"pontifical academia of sciences" » "pontifical academia of science"
"pontifical academic of sciences" » "pontifical academic of science"
"pontifical academics of sciences" » "pontifical academics of science"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("pontifical academia of sciences") OR ("pontifical academic of sciences"))) or ("pontifical academics of sciences"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pontifical academia of sciences") OR ("pontifical academic of sciences"))) OR ("pontifical academics of sciences")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"pontifical academia of sciences\") OR (\"pontifical academic of sciences\"))) or (\"pontifical academics of sciences\"))".
• Removing quotes may allow a broader search: (((( pontifical academia of sciences ) OR ( pontifical academic of sciences ))) or ( pontifical academics of sciences )).
• Adding a wildcard symbol may retrieve word variants: (((("pontifical academia of sciences") OR ("pontifical academic of sciences"))) or ("pontifical academics of sciences"))*.