Search Engine needs full word front-end (but not back-end)

A user experience observation with the search on the Frosty menu bar....

I have a Halloween event. Being lazy I try to find it using just 'hallo'

Back-End Search Events this works fine.

Front-End though it doesn't return the event called 'Halloween'

It does bring back a couple of users with the name Hall. But not the event Halloween.

I'd have expected it not to bring back the 'Hall' names and most importantly to bring back the 'Halloween' event.

If you type the full word 'Halloween' then it does work.