You can use bangs: https://asciimoo.github.io/searx/user/search_syntax.html. Instead of redirecting you, it changes the engines that are used for the search, so you still get anonymity. Also, you can use smart bookmarks[1][2] to get essentially the same functionality as bangs, but done directly by your web browser when you type keywords in the address bar, which skips a unneeded request to the search engine.
[1]: http://kb.mozillazine.org/Using_keyword_searches
[2]: https://en.wikipedia.org/wiki/Smart_Bookmarks