Search table view using multiple filters

I would like to ask how can I search with multiple filters in searchDisplayController

here is my method:

func filterContentForSearchText(searchText: String, scope: String = "All") {
    // Filter the array using the filter method
    self.filteredCandies = self.person.filter({( candy: Candy) -> Bool in

        let categoryMatch = (scope == "All") || (candy.category == scope)

        let stringMatch = candy.name.rangeOfString(searchText)

        return categoryMatch && (stringMatch != nil)