Complex sentence: Phraya Anuman Rajadhon (1888--1969) was the first Thai scholar who seriously studied local folk beliefs and took notes on the studied in depth such apparently unimportant details of his culture as the charms used by Thai shopkeepers to attract customers, village spirits and ghosts.
Split into simpler sentences: Phraya Anuman Rajadhon (1888--1969) was the first Thai scholar who seriously studied local folk beliefs. He took notes on and sometimes studied in depth such apparently unimportant details of his culture as the charms used by Thai shopkeepers to attract customers, village spirits and ghosts.