Error with query. - List Articles

SELECT t1.id, t1.title_es AS the_title, t1.subtitle_es AS the_subtitle, t1.desc_es AS the_body, DATE_FORMAT(t1.date_add, '%d-%m-%Y') as date_add, t3.name AS this_writer, t4.foto, t5.menu_es AS cat_title, t5.url_es AS cat_url FROM web_articles AS t1 LEFT JOIN web_writers AS t3 ON (t3.id=t1.id_writer) LEFT JOIN web_fotos AS t4 ON (t4.id_article=t1.id) LEFT JOIN menu_web AS t5 ON t5.id=t1.id_cat WHERE t1.id>0 AND t1.active_state=1 AND t1.id_cat = '9' AND text_search = '"http:' GROUP BY t1.id ORDER BY t1.date_add DESC

Unknown column 'text_search' in 'where clause'