I read this article, it may shed some light. They are up against a political dynasty in that part of Bangkok with tremendous resources. I found it quite inspiring.
In a cramped shophouse in one of Bangkok's nondescript outer suburbs, a small group of volunteers feverishly pack leaflets in preparation for the daily ritual of canvassing for votes.
This is the decidedly low-rent campaign headquarters in Bang Bon for Move Forward, the most radical party contesting this month's general election in Thailand.
https://www.bbc.com/news/world-asia-65491533