Subcategories or multiple categories for expenses

Be able to have an expense with a main category with subcategories

Ideally, select or set multiple categories for an expense, so users can search for either category.

Use case:

To track spending on user's motorcycle and gas, they have to make a category called "motorcycle gas". If they can set multiple categories, they can search for motorcycle and gas categories (ideally, singularly and together). Another point of view is if you buy gas and food on the same receipt, it would be nice to be able to search for both