Your criteria isn't valid. QuickFind is the equivalent of entering data into the quick find box at top right corner and you can't use that method to specify specific values for specific fields. I searches all searchable fields on the current layout using the specified criteria.
Your expressions are actually calculations that evaluate to return number values of 1 (True) or 0 (false).
Instead, set up your drop down to select values in a global field and set up a scripted find similar to the examples found here: Scripted Find Examples
Thanks that makes sense let me check this out!