The simplest fix is to let Google do the searching. You can tell it to search mudcat only by using the SITE prefix in the Google search box. So instead of searching on Mudcat for, say, "The Golden Vanity," type the following into your Google search box:

site:mudcat.org "Golden Vanity"

(or whatever search terms you want. You don't need the quotes; they just tell Google to search for the two words RIGHT NEXT TO EACH OTHER.)