Why Doesn't Global Site Search Work?

I am really getting fed up with Global Site Search giving such poor results. I am finally deciding to write to you in case there is a way of fixing it.

Example: I just did a search for "gay & OK". The article I was looking for was at the bottom of the third page. With about 43 items per page, that worked out to a search result of more than 120 incorrect results.

The exact title of the article is "I'm Gay and It's OK", so I did a search for that. See screenshot

Even with the EXACT spelling of the title, the article was 37th! Now that's just crazy! See screenshot This only shows the bottom part of the search but it will give you an idea.

What is the problem? Am I missing something in the set-up?

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