You can use the Search Alias tool. In your Backoffice go to
Search and at the top click on
Add new Alias.
Here you can provide an Alias for
DCP-9015. In the
Alias field type "DCP9015" and in the
Result field type "DCP-9015".
Save and repeat this operation for every alias you need to create.
If you got a lot of aliases you can do it programmatically. If you really want you can also override
indexation() method in
/classes/Search.php, but that will needs more work.