If you start typing a website into the address bar and google recognizes it as something that has a search field, you can hit tab and start typing a query. e.g. I probably type out "en.wik{TAB}<something I want to learn about>{ENTER}" about 20 times a day.
With that as the context; when I start typing in
vlasisku.lojban.org I get that same option, "Search Lojban dictionary", but then when I hit tab and type my query like "julne", it takes me to "
vrici:8000/vlasisku/julne".