I'm guessing that there are others whose muscle-memory, when typing, is a bit munged. I finally did a full re-indexing of the document search engine (a little over 34K of docs). then then tested the engine but mispelled the search ("epbf" instead of "ebpf"). This produced 4 answers. I then mispelled "falco" by typing in "flaco" (which Google indicates is Spanish for "skinny" or "thin"). This produced two documents with "falco" mispelled and two Spanish langage files. I'm thinking I need to research if Recoll can do fuzzy searches.