First of all, you can search the recruitment information of leech farms through the Internet, or contact the local leech farms directly to find out whether there are job opportunities. Secondly, you can consult the relevant vocational training institutions to see if there are courses to provide leech breeding technology training, and gain relevant professional knowledge and skills through learning to improve your employment competitiveness. Finally, you can also consult the local labor and employment department or the human resources market to see if there is any recruitment information for leech farms.