Is it credible for people nearby to introduce you to part-time jobs?

No one here can really introduce you to work. You still have to rely on yourself to find a job. Look at more regular recruitment websites, and don't go to Jiji.com, People.com and 58.com to find a job. There are too many swindlers there, but go to regular recruitment websites such as ChinaHR.com, Zhaopin.com, 5 1 Carefree.com ... or you can find friends and relatives to introduce you, or you can go to the local human resources market. I wish you an early job.