Countries_List['France', 'Brazil', 'Mexico', 'Thailand'] # with more than 158 countries in this list !
for Country in Countries_List:
    url = 'http://bandscore.ielts.org/search.aspx'
    values = {
             '__EVENTTARGET' : 'gdvSearchResults',
             '__EVENTARGUMENT' : page,
             '__VIEWSTATE' : view_state,
             '__PREVIOUSPAGE' : previous_page,
             '__EVENTVALIDATION' : event_validation,
             'DropDownList1'  : Country, # HERE WE PUT THE COUNTRY, WHICH IS DIFFERENT FOR EACH REQUEST
            }
    user_agent = 'Mozilla/5 (Solaris 10) Gecko'
    headers = { 'User-Agent' : user_agent }
    data = urllib.urlencode(values)
    req = urllib2.Request(url, data, headers)
    response = urllib2.urlopen(req)
    thePage = response.read()
    the_page = soup(thePage)