Are there foods that can help with treating liver cancer?

Hi, my father is suffering a liver cancer and more details as shown. Blood group - B positive, Age - 68 years, Disease - Multi focal hepatocellar carcinoma/hepatoma, Hepatitis B/Hepatitis C - Negative, Method - Trans-Arterial Chemo-Embolization (TACE), Chemicals - Lipidol & Duxorubin & Hepasprin which is injected to the tumor by 14 catheter tube, 1st TACE - 26/10/2008, 2nd TACE - 11/03/2010, 3rd TACE - 17/07/2010, Post operation procedure - Linear, non-contrast abdomen CT scan & Ultra sound Scan, Drugs taken - Losartan 50 mg for pressure, CT Scan results - enhancing lesion can be seen in segment V of the liver.(recurrence) - 2 cm x 1.4cm x 1 cm, Previously embolised lesion in segment VIII is slightly less in size. - 4cm x 2.8cm x 2 cm. Could anyone reply me with further treatments and food diets (specially available in Sri Lanka) as I heard that is most important and anyother precautions we can take on him? Thanking you very much.