I have some trouble with Chroma DB, specially in the minute 2:11:00 from the LangChain Master Class. I have done all the steps indicated, but when I try to retrieve the documents to do the query "How can I learn more of Langchain?", it retrieves documents that are non sense! I need some help to solve this, because on Stack Overflow some people said that they are just using Chroma library instead of the LangChain wrapper. The only thing I changed from the original code was the import, because it was deprecated and now it is recommended to use `from langchain_chroma import Chroma`. Does anyone has this same problem?