RATIONALE: Bexarotene and tretinoin may cause tumor cells to look more like normal cells, and to grow and spread more slowly. Drugs used in chemotherapy, such as cisplatin, carboplatin, docetaxel, and capecitabine, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Giving bexarotene and tretinoin together with combination chemotherapy may kill more tumor cells.