'Search for existing keywords, similar to the given one.'

def search_keyword(self, keyword, results=None):

    if (results is None):
        results = self._keywordsResults
    try:
        results = int(results)
    except (ValueError, OverflowError):
        results = 100
    if (not isinstance(keyword, unicode)):
        keyword = unicode(keyword, encoding, 'replace')
    return self._search_keyword(keyword, results)
