Right now, if I search in the in-game encyclopedia and whatever I search for is not an exact full match for an article title, all I get is "sorry, but there's no information available about this topic." This includes cases where the search query is an exact part of an article title. E.g. searches for 'bronze', 'silver' give no results although articles named 'bronze bracelet', 'bronze ball pendant', 'silver ring' and 'silver chain bracelet' exist. As far as I can tell, no option to wildcard a search exists.
It would be nice if a wildcard function was introduced, so that if one knows part of the name of the article one is looking for, it can still be found. Perhaps along the lines of "sorry, but there's no information available about this exact topic. The following information does exist: |list of matched articles|". It would make the in-game encyclopedia more useful for other purposes than broad general information and examining the stuff in one's inventory.