code: public List<Article> get(String url, String search) {
  		if(search == null)
  			return articleMap.get(url);
  
  		return articleMap.get(url + "?s=" + Uri.encode(search));
  	}
docs: Similar to {@link PkRSS#get(String)} but also looks for the search term.
  @param url Safe URL to look up loaded articles from.
  @param search Search term.
  @return A {@link List} containing all loaded articles associated with that
  URL and query. May be null if no such URL has yet been loaded.