Convenient search functions for users

[mattiker]

Is your feature request related to a problem? Please describe. Since we're all spoiled with the features of today's search engines, like autocomplete and typo tolerance, I was wondering if this can be implemented for the JW search, including search functions known from library catalogs (jokers or wildcards). JW does not allow the use of jokers if you are unsure about the spelling (like author name "Renner" = "re?er"). Also the search is quite strict. It does not forgive missing letters (no hits for "renne", only "renner" will show me a list).

Describe the solution you'd like Include the use of jokers and typo tolerance with similar results (at least to a level where a missing letter or word should not lead to zero results).