Perhaps you should try some spelling variations:
"paulo conclusion principle" » "paulo conclusion principles", "paulo conclusion principled", "paulo conclusions principles", "pablo conclusions principle", "fault conclusion principle", "kaul conclusion principle"
"paulo exclusion principle" » "paulo extension principle", "pauli exclusion principle", "pauli's exclusion principle", "bulk exclusion principle"

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: "((\"paulo exclusion principle\") OR (\"paulo conclusion principle\"))".
• Removing quotes may allow a broader search: (( paulo exclusion principle ) OR ( paulo conclusion principle )).
• Adding a wildcard symbol may retrieve word variants: (("paulo exclusion principle") OR ("paulo conclusion principle"))*.