select * from gdc_cat_producten,mod_winkelform_btwcodes where proBtw=btwId and (proReferentienummer='bureelagenda' or (proTitel LIKE '%bureelagenda%') or (proKoptekst LIKE '%bureelagenda%') or proId='bureelagenda') and gdc_cat_producten.publiceren=1 order by proTitel,proId