title: lxml xpath not finding anchor text
body: <p>I have two xpaths and only one of them correctly pulls the job titles from the url below. Any idea why xpath1 (which I found using the 'inspect element/copy XPath' feature of Chrome) doesn't work, while xpath2 does? </p>
  
  <pre><code>import requests
  from lxml import html
  
  url = 'http://www.mynextmove.org/find/browse?c=54'
  
  xpath1 = '//*[@id="content"]/table[1]/tbody/tr/td[1]/a/text()'
  xpath2 = '//a[contains(@href, "profile")]/text()'
  
  page = requests.get(url)
  tree = html.fromstring(page.text)
  
  jobs = tree.xpath(xpath2)
  print 'jobs:', jobs
  </code></pre>
  
  <p>xpath1 returns [], the empty list.</p>
  
  <p>xpath2 returns ['Anthropologists', 'Archeologists', ...]</p>