通过包含过滤日志组名称

Question

我在AWS Cloud Watch中有大量的日志组，现在我要做的是获取包含示例字符串的日志组列表，是否有更好的方法通过包含来过滤大量的日志组AWS CloudWatch，我有此示例代码

List<LogGroup> groups = new List<LogGroup>();
        try
        {
            DescribeLogGroupsRequest req = new DescribeLogGroupsRequest()
            {
            };
            DescribeLogGroupsResponse rep = logsClient.DescribeLogGroups(req);
            groups.AddRange(rep.LogGroups.Where(x => x.LogGroupName.Contains(samplestring)));
        }
        catch (AmazonCloudWatchLogsException e)
        {

        }