code: def simple_search(self, *keywords):
          
          matches = []
          keywords = [kw.lower() for kw in keywords]
          logger.verbose(
              "Performing simple search on %s (%s) ..",
              pluralize(len(keywords), "keyword"),
              concatenate(map(repr, keywords)),
          )
          for entry in self.filtered_entries:
              normalized = entry.name.lower()
              if all(kw in normalized for kw in keywords):
                  matches.append(entry)
          logger.log(
              logging.INFO if matches else logging.VERBOSE,
              "Matched %s using simple search.",
              pluralize(len(matches), "password"),
          )
          return matches
docs: Perform a simple search for case insensitive substring matches.
  
          :param keywords: The string(s) to search for.
          :returns: The matched password names (a generator of strings).
  
          Only passwords whose names matches *all*  of the given keywords are
          returned.