def find_doubles(in_array)
      result = []
      find_not_uniq_words(in_array).each do |not_uniq_word|
        in_array.each do |url_desc_cont|
          result << url_desc_cont if url_desc_cont[1][0] && url_desc_cont[1][0].include?(not_uniq_word)
        end
      end
      result
    end
def find_doubles(in_array)
      result = []
      find_not_uniq_words(in_array).each do |not_uniq_word|
        in_array.each do |url_desc_cont|
          result << url_desc_cont if url_desc_cont[1][0] && url_desc_cont[1][0].include?(not_uniq_word)
        end
      end
      result
    end
in_array must be [[url_of_page, words_in_string_with_space],[next, same_element]]