Hi Vigneswaran,
Greetings from Syncfusion support.
By default, MultiSelect having filterType as StartsWith. Due to this, while filtering, it will fetch the data based on matching character on first item alone. So, we suggest you to change the filterType as “contains” to achieve the requested requirement.
Please refer the below API documentation to know more about this property.
For your convenience, we have prepared the sample and attached it below.
Regards,
Berly B.C