public function addQuotedLexeme()
    {
        $this->_lexemes[] = new Zend_Search_Lucene_Search_QueryToken(
            Zend_Search_Lucene_Search_QueryToken::TC_PHRASE,
            $this->_currentLexeme,
            $this->_queryStringPosition
        );

        $this->_currentLexeme = '';
    }