Perhaps you should try some spelling variations:
"secret ballot" » "secreta ballot", "secretos ballot", "secretas ballot"
"secreto ballot" » "secretao ballot", "secretoso ballot", "secretaso ballot"
"secretao ballot" » "secretaao ballot", "secretosao ballot", "secretasao ballot"
"secretoso ballot" » "secretaoso ballot", "secretososo ballot", "secretasoso ballot"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("secret ballot") OR ((((("secreto ballot") OR ("secretao ballot"))) OR ("secretoso ballot"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"secret ballot\") OR (((((\"secreto ballot\") OR (\"secretao ballot\"))) OR (\"secretoso ballot\"))))".
• Removing quotes may allow a broader search: (( secret ballot ) OR ((((( secreto ballot ) OR ( secretao ballot ))) OR ( secretoso ballot )))).
• Adding a wildcard symbol may retrieve word variants: (("secret ballot") OR ((((("secreto ballot") OR ("secretao ballot"))) OR ("secretoso ballot"))))*.