Search a string with "_" and "-" does not work

[rsslldblsnglll]

(Footable 3.1.6)
Hi guys.
I've a table in which there are text records like: SOMETHING_SOM-ETH-010_username.

• If I type in the search textbox "SOMETHING_SOM-ETH-010", it produces 0 results.
• if I type the complete string SOMETHING_SOM-ETH-010_username, it works.
• If I type "SOMETHING_SOM-ETH", it works.
• If I type "SOMETHING_SOM-ETH-", it works.
• If I type "SOMETHING_SOM-ETH-0", it does not work.

I've already tried to put in a script:

$(document).ready(function () { $("#mytable").footable({ "filtering": { "exactMatch": true } }); });