Enable full-content search^{🛈Since the search is not server-side, you need to download about 0.3 MB (one-time download only when you check the box) to perform a full-content search.}:

Enable fuzzy search^{🛈Only use this if you cannot find any results. You may get a mass of irrelevant results, if both of fuzzy search and full-content search are enabled.}:

Search in all posts^{🛈This allows you to see up to 30 results, which is the total number of posts on this website. Else only 15 results will be shown.}: