I'm wondering if there's a plugin out there that not only searches the main text of your pages for a particular search string, but also searches the text in the widget fields? This seems to be something that Google Search can't even do.
For example, on my site, http://www.nationalanthems.info/wordpress , a search for a word like "mango" comes up empty, even though it appears on http://www.nationalanthems.info/wordpress/bd.htm (under "English translation"). I would like to have those texts searchable with a search plugin at well.
You can imagine, however, that looking for a plugin that does this while using the search field "search widget text" to find it doesn't come in very handy, as it basically brings up every search widget out there, and I have no idea whether they all can search widget text or not without trying them all.