Use free public employment services and day-labor markets (零工市场) to find work, not paid agencies

In plain words

Public bodies such as employment service centers (就业服务中心) and human resources markets (人力资源市场) charge nothing for job referrals, career guidance, policy advice, or unemployment and employment registration. The law expressly forbids them from making money from these services. Registering and posting information at a day-labor market is also free. While you are there, do your unemployment registration (失业登记) too: you need it to collect unemployment benefits and to be recognized as a person with employment difficulties (就业困难人员).