[YouTube-API] search the next 50

I am trying to search youtube using
org.apache.http.client.HttpClient ( apache httpclient)

In order to search more than 50 records I am incrementing start-index
for every search request.

I noticed the results returned are the same irrespective of start-
index

her is the code

public static String getResponse(String startIndex) throws Exception
{

HttpClient httpclient = new DefaultHttpClient();
List<NameValuePair> qparams = new ArrayList<NameValuePair>();
qparams.add(new BasicNameValuePair("q", "telugu movies"));
qparams.add(new BasicNameValuePair("fields",
"entry(media:group(media:title,media:player,yt:duration))"));
qparams.add(new BasicNameValuePair("max-results", "50"));
qparams.add(new BasicNameValuePair("start-index=", startIndex));

URI uri = URIUtils.createURI("http", "gdata.youtube.com", -1, "feeds/
api/videos", URLEncodedUtils.format(qparams, "UTF-8"), null);
HttpGet httpget = new HttpGet(uri);
System.out.println(httpget.getURI());
HttpResponse response = httpclient.execute(httpget);
HttpEntity entity = response.getEntity();
String value=EntityUtils.toString(entity);
System.out.println(value);
return value;//StringUtils.removeStart(value, "<?xml version='1.0'
encoding='UTF-8'?>");
}

public static List<String> getResults(int noOfTimes) throws
Exception{
List<String> results= Lists.newArrayList();
int count=0;
while(count<noOfTimes){
int startIndex=(50*count)+1;
results.add(getResponse(String.valueOf(startIndex)));
count++;
}
return results;
}

if this is not the right way how to search more than 50 records ?

I call the method getResults here I pass number of times to
search , for every search I am calculating start-index as (50*count)
+1;

here the url I am searching

http://gdata.youtube.com/feeds/api/videos?q=telugu+movies&fields=entry%28media%3Agroup%28media%3Atitle%2Cmedia%3Aplayer%2Cyt%3Aduration%29%29&max-results=50&start-index%3D=1
http://gdata.youtube.com/feeds/api/videos?q=telugu+movies&fields=entry%28media%3Agroup%28media%3Atitle%2Cmedia%3Aplayer%2Cyt%3Aduration%29%29&max-results=50&start-index%3D=51
http://gdata.youtube.com/feeds/api/videos?q=telugu+movies&fields=entry%28media%3Agroup%28media%3Atitle%2Cmedia%3Aplayer%2Cyt%3Aduration%29%29&max-results=50&start-index%3D=101
and so....on.

its the same url except for start-index value , is this the right
way to search more than 50?

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