Often, a question is not phrased clearly or lacks the terms that another user would use in searching for information. This is often not the "fault" of the person asking the question, who may not be fluent in English or familiar with the (La)TeX or typographic vocabulary. This affects the provided list of possible related questions; distressingly often, these are wildly inappropriate. Usually, comments from other users include more familiar keywords when asking for clarification.
But a general search on the site -- and (I have been given to believe) a web-wide Google search -- omits searching in comments by design. This makes it difficult to find relevant information without making multiple guesses about what to search for or reading through numerous questions unearthed by "approximation".
I will correct spelling or add tags when there's an obvious error or omission, and I will often ask for clarification in a comment. But if I'm not sure, I do nothing else, knowing that the next person to look at a question will probably be similarly confused, or not even look at the question.
What action can one take to make it easier to find an entry later, especially if it does get a good answer, and a similar question might be answered by the same information?
Alternatively, please offer an improved search strategy.