public void printRelate(Node temp,String tag){
		
		if(temp!=null){
			printRelate(temp.leftChld,tag );	// call recursively and go to left subtree
			temp.title=temp.title.toLowerCase();
			int cnt=temp.title.indexOf(tag);		//check for title contain tag
			if(cnt>=0){
				printOut(temp);					// print the tag contain node
			}
			printRelate(temp.rightChld,tag );	// call recursively and go to right subtree
		}
		
	}