How to fit virtuemart article title?

Hello,

I realized that it not possible to have a long text title..

For example my title is "Terrine Wellness Poulet Algue Marine et Spiruline, 12 conserves de 400g" and after save my article, the new title is "Terrine Wellness Poulet Algue Marine et Spiruline, 12 conserves" .....this part which missed is "de 400g"

could someone help me?

Thank you in advance