Perhaps you should try some spelling variations:
"witt:bon vivant" » "litt:bon vivant", "witt:born vivant", "witt:bone vivant"
"pitt:bon vivant" » "pitt:born vivant", "pitt:bone vivant"
"wik:bono vivant" » "wik:borno vivant", "wik:boneo vivant", "wick:bono vivant", "wink:bono vivant", "wik:mono vivant", "wik:cono vivant", "wik:tono vivant"
"wik:bond vivant" » "wik:bornd vivant", "wik:boned vivant", "wick:bond vivant", "wink:bond vivant", "wik:band vivant", "wik:boyd vivant"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("witt:bon vivant") OR ("pitt:bon vivant"))) OR ((("wik:bono vivant") OR ("wik:bond vivant"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"witt:bon vivant\") OR (\"pitt:bon vivant\"))) OR (((\"wik:bono vivant\") OR (\"wik:bond vivant\"))))".
• Removing quotes may allow a broader search: (((( witt:bon vivant ) OR ( pitt:bon vivant ))) OR ((( wik:bono vivant ) OR ( wik:bond vivant )))).
• Adding a wildcard symbol may retrieve word variants: (((("witt:bon vivant") OR ("pitt:bon vivant"))) OR ((("wik:bono vivant") OR ("wik:bond vivant"))))*.