The text discusses how Vietnam's fruit and vegetable exports to China have been affected by competition from neighboring countries and China's domestic production. The exports of dragon fruit, passion fruit, and longan have declined due to an increase in China's domestic cultivation and imports from Laos and Cambodia. Despite these challenges, Vietnam can leverage its geographical advantage, lower transportation costs, and focus on improving quality and production to gain an edge over competitors. It is also suggested that Vietnam should explore export opportunities in markets such as Japan, Korea, and the US.