self.searchResults = [[datenSort filteredArrayUsingPredicate:predicate] mutableCopy];

- (void)handleSearchForTerm:(NSString *)searchTerm
{
    self.savedSearchTerm = searchTerm;
    if ([self searchResults] == nil)
    {

       NSMutableArray *array = [[NSMutableArray alloc] init];
       self.searchResults = array;
       [array release], array = nil;
    }

    [[self searchResults] removeAllObjects];
    if ([[self savedSearchTerm] length] != 0)
    {

       NSPredicate *predicate = [NSPredicate predicateWithFormat:@"(Name contains[cd] %@)", searchTerm];
       self.searchResults = [[datenSort filteredArrayUsingPredicate:predicate] mutableCopy];

      }


}

@property (nonatomic, copy) NSString *savedSearchTerm;
@property (nonatomic, retain) NSMutableArray *datenSort;
@property (nonatomic, retain) NSMutableArray *searchResults;

if(tableView == self.searchDisplayController.searchResultsTableView){

        dataItem = [searchResults objectAtIndex:indexPath.row];

    }else {

        dataItem = [datenSort objectAtIndex:indexPath.row];

    }

self.searchResults = [[datenSort filteredArrayUsingPredicate:predicate] mutableCopy];

NSArray *temp = [[datenSort filteredArrayUsingPredicate:predicate] mutableCopy];
self.searchResults = temp;
[temp release];

self.searchResults = [[[datenSort filteredArrayUsingPredicate:predicate] mutableCopy] autorelease];