on blogging

Consider the following thought process:

- I use a blogging software to 'brain dump' ideas over a year. So, in about a year I would have 100s of posts related to different subjects like AI, thinking, business, self-actualization etc.

Now I want to view only the thoughts on one subject, or view all of my thoughts in one subject together, or export thoughts on one subject to txt format.

Would blogger let me do that?