We have a feature called a "To-do list" and my top Search Terms with No Result include "todo" "to-do" and "todos". When I search for "to-dos" I see in the search results that only "do" is highlighted. Are hyphens treated as whitespace, and "to" excluded due to being a common word?
I see other posts requesting a hidden keyword feature or hashtags, I think that might help this situation but it also seems that since this is such a short word with a hyphen that it is difficult to find.