I have fuzzy matching in
helm-apropos-fuzzy-match set to true. I would like to get fuzzy matching for
describe-variable and the like, too. How can I enable it for these?
If you are not limited to Helm for this, and you use Icicles, then every command, not just
describe-variable, can use fuzzy matching.
To toggle fuzzy matching on, just use
M-( from the minibuffer, depending on which type of fuzzy matching you want. Icicles has many types of fuzzy matching, and these keys cycle among matching/completion methods.
See Icicles -Completion Methods and Styles for details.