Creating a portfolio with Dara

I’ve created a project portfolio page (two separate types of portfolios) and I thought setting this up as a page was the best option, but it seems that the tags I am applying to the pages aren’t working. (for example – I have a tag “white cabinets’ and when I search for white cabinets I get no results)

Would it be better to set the portfolio pages up with the posts format? If so, is it possible to have 3 different types of ‘posts’ (blog, Portfolio 1 and Portfolio 2)? Any ‘best practices’ on setting these up?

Thanks!