Yes, it can.
Cancer cells can spread to other areas of the body through either the bloodstream or the lymph system.
If they travel through the lymph system, the cancer cells may end up in lymph nodes. Most of the escaped cancer cells would be killed or die before they can start growing somewhere else. But one or two might settle in a new area and form new tumors.
To learn more you should go to a medical professional.
Keyword: lymph nodes stomach cancer