title: How to do web-scraping of contents in TripAdvisor using YQL
body: <p>I am quite new to web scraping so my question might be a little simple but it really bothers me a lot.
  I want to scrap some contents from TripAdvisor, but when I run the following command in YQL, it returns nothing.</p>
  
  <p>select * from html where url="http://www.tripadvisor.com/Search?q=sunny+relax&amp;geo=191#&amp;ssrc=A&amp;o=0.html" </p>
  
  <p>Can anyone tells me why? Is there anything wrong with my commands?</p>
  
  <p>Thank you in advance for your kind help.</p>