IN the Find dialog box there is an option to "Exclude expired entries". I would like an additional option added that would "Exclude Recycle Bin"
Such an option is not required, because for each group you can specify whether KeePass should search in it or not. Right-click on the group (in the main window), choose 'Edit Group', switch to the 'Behavior' tab and set 'Searching entries in this group' to 'Disabled'.
If the recycle bin was created by KeePass, it already has set this property to 'Disabled' by default.