MariaDB Regex Substring Extraction

I have a table ID (varchar) | FieldA (text) where ID is the primary key, and FieldA is a text field. FieldA contains long text blocks. I want to search this field for substrings (there can be several... (Budget: $30 - $250 USD, Jobs: Data Extraction, Data Processing, Database Development, MariaDB, MySQL, PHP, Regular Expressions, SQL)