Hello,

If you specify values in the following format:

1;foo
2;bar

it means that 1 and 2 are stored in the database when some item is selected whereas values foo and bar are used only as a text in the multiple choice control.

The point is that only content stored in the database is indexed by smart search module and as a result can be used to search for documents, in this case it is 1, 2.

So, I would recommend changing the definition to this value:

foo;foo
bar;bar

so that foo and bar were stored in the database and indexed by search module.

Best regards,
Michal Legen