Is there any cure for naso pharyngeal cancer, or can doctors only get part of the tumor out?

Possible to cure. The likelihood of cure depends on several things, with the stage being one of them. Typically, nasopharyngeal cancer is treated with chemotherapy and radiation. Surgery is usually used when chemoradiation fails.
Surgery difficult. Due to anatomical location and early spread to cervical lymphnodes, surgical resection is not possible except for biopsy, treated with chemo radiation, over all prognosis is not good.