Searching a word with underscores in Smart Search doesn't search for the exact phrase

[simbian]

Hello, before upgrading to latest Joomla 4.x stable i was using com_search component in Joomla 3.10.x and for example if i search for the word MAN_1_4_1 it exactly gives me the results for the whole word.
In Joomla 4.x i switched to Smart Search component and if i search for the same word it gives me results for MAN and 1 and 4 and 1. How i can search for the exact phrase?

Thanks in advice.

[Webdongle]

Have you tried putting the phrase in double quotes?

[simbian]

Yes but it says no results found for "man_1_4_1", because seems it search for the word man 1 4 1 so not considering the underscores.

[Webdongle]

Just done a test
* Created Test Article with text ... man_1_4_1
* Created Test Article 2 with text ... man
* Created Menu item for smart search

Tested with and without search filter created in Smart search

Results using search box

smart search 01.JPG

Results using search from menu item (also auto adds to search box)

smart search 02.JPG

Both only show one result not the result for the test 2 that had the word 'man'

[simbian]

I expected that searching the term with double quotes will show me the results containing MAN_1_4_1 and not giving no results found.
It is possible to achieve that?
If i search without double quotes it search for MAN and 1 and 4 and 1.
Maybe the _ is a special char and not considered by the smart search?

[Webdongle]

...
If i search without double quotes it search for MAN and 1 and 4 and 1.
Maybe the _ is a special char and not considered by the smart search?

boolean logic it has to contain all three of the words man_1_4_1 but not necessarily in the same order
It does appear to ignore the underscore. Also appears not to use exact phrase.