Smart search in Service Desk

[Damian]

Dear Atlassian Community,

I've some questions or rather doubts regarding how smart search works in JIRA Service Desk.

Let me show you my example below.

I've 3 teams with seperate portals:

Portal1 with 3 customer request type:

- user modification

- new user

- new e-mail address

Portal2 with 3 crt:

- mail modification

- new application

- new laptop

and Portal3 also with 3 crt:

- laptop modification

- problem with phone

- payslips  

Of course I've these 3 portals in one main Portal for the Customers, with search engine, etc.

Next, when I type in search field, for instance  "modification" in return I've received only:

- user modification (from Portal1)

- laptop modification (from Portal3)

So I'm wondering where is "mail modification" from Portal2 ? 

Or when I type "new" i should get:

- new user (from Portal1)

- new e-mail address (from Portal1) 

- new application (from Portal2)

- new laptop (from Portal2)

But I got only "new user" and "new application". So where is the rest?

How our users can find proper request if they are not able to found it using search field? 

Can someone explain me how it works? I'll be really appreciated.

Thank you in advance.