[PyQt] Help with a Combobox

[Giuseppe Ventura]

Hi all,
i've build a combobox with items from a Query from a database and it works well. I've adding a Qcompleter to this ComboBox and work.
The query is filtred with max 200 rows like: select * from table T1 where rownum<201 because i dont want load all 3000 items (many times).
Now I want that when i write text in combobox for example "IM"  i want that Completer show only items like "%IM%" for example select * from table T1 where column like '%IM%'.
i must reinsert all items in combobox?
This is my code, you can help me? https://pastebin.com/kt3jW6Vf

Thanks
Bye

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