The built-in search on Gwulo is very literal. eg if you search for pillbox, it only lists pages that contain the word with that exact spelling - no pages with pillboxes or pill box, etc. Sometimes that's good, but other times it's good to see pages that are probably of interest, even if the words aren't exact matches. Google is better at that type of search.
Now you have the option to quickly swap between the two options. Here's the results page for the standard Gwulo search for pillbox:
https://gwulo.com/search/node/pillbox
At the top of that page you'll see a tab marked "Google". Click it and you'll see the results of a Google search for pages about pillbox on Gwulo: