Scrape a compact board

Hello: I'm working with the free version of Web Sraper on a series of tables whose headers are a little special because they appear subdivided. I'm only able to scratch the values of the first 3 columns of the 6 columns that you have https://www.quefondos.com/es/fondos/buscador/corto_plazo.html?cardCount=1&cardSize=100. Can someone help me?Thank you very much and a greeting.