The Advanced Search page with the applied Audience Theme (Interface configurations > Experience Settings) is coded in such a way that the help text (the strings are "Refinement" and "Search Instructions" in the translation file) is obscured. If you have more than 4-5 words in the "Refinement" string, you then also can't really see the link for Basic Search. This isn't a problem when you're not using the audience theme.

It would also be great if we could have strings for "Refinement" and "Search Instructions" specifically for kids in the translation file. That way you could use language for very young children vs. more advanced language you'd use for adults.