Another option for searching is in the green bar just below the first search box. This search has many more additional features.
Type in any word or combination of words and the results can be displayed as threads or individual posts.
If searching for multiple words or a specific phrase, put the words into quotation marks in the search bar. "winterize my trailer" will bring back fewer but more specific results vs. just typing in the words: winterize my trailer without the quotes.
Only 51 results when using the quotes:
Over 500 results without the quotes:
This is because when searching with the quotes, it will only look for that phrase with all three of those words together. Without the quotes it will look for each of those 3 words individually regardless if it finds them together or not.