The document discusses different types of trade that occurred in ancient Philippines, including barter trade (paaan ng pakikipagkalakalan), domestic trade (kalakalang panloob), and overseas trade (kalakalang pang tawid-dagat). It mentions that barter trade between native Filipinos and Chinese occurred as early as the 10th-13th century, with the Chinese exchanging silk for goods from native groups in Mindoro. The document also notes cultural influences on the Filipino language from Chinese, Islamic, Hindu, and Japanese sources through borrowed words.