How well do(es) 'Smart Wall Paint Dry Erase Whiteboard Paint 65 Square Feet Paint Kit (White)' match the search: ideal paint whiteboard ?
Irrelevant: Paired with Search by Mistake
It is obvious that result doesn't match search intent at all.
Even if there are words that result and search have in common, their meaning is completely different.
Relevant: Obvious Differences
A part of search intent is matched by result but there are also differences (color, model, brands, etc).
The product is something that is used with the searched item: material, tool, accessory, extra part, cover/case.
Relevant: Possible Differences
Result could match the search, but not in its primary meaning.
There is a slight mismatch between product and search terms that you don't think is important, given the intent.
Perfect Match
Result matches every property specified by search terms, such as color, size, model, material, or function.
Search intent is clearly satisfied.
You're confident that this is the kind of result that the customer intended to find.