Proposed to change the behavior of the search engine

@aferrandini I find the current behavior of the search engine a bit unintuitive. I'm used to search engines where you can write any string (`term`) and you get the results that match the broad look up `%term%` instead of forcing the user to use `*` to make fuzzy searches.

Anyway, as this is just a matter of opinion, I've created this PR and I'd love to read your opinion about this. Thanks!