How come I can't find my article but visitors can?

How come some visitors find an article of mine on Google but I can't find it myself? Here's the one:

http://wizzley.com/christmas-2012-gift-ideas-many-frugal-for-your-partner-husband-or-wife/

I searched on Google with

Christmas gift ideas for partner

and found nothing. I mean, many things, but not my article.

A few of my other articles were easy to find, but what's happening with this one? How come people find me and I can't? (That's the question ;-)

I also searched with

christmas ideas for boyfriend 2012

which is how one visitor found my article. My Christmas gifts article was nowhere to be found in the first 10 pages of results.

I know Google works differently depending on location and personal history, but still.

Same here I have been noticing less visitors from Google and more visitors from Wizzley. Google has been hitting sites like Wizzley and Hubpages for some time so it is very difficult to rank high. Keep writing good content and don't mind Google too much. Their algorithm  changes are unpredictable and no one can do anything about them. Write good content and eventually everything will turn out in your favor.

Hi, QuantumLouie, I did get some visitors from Google, so Google does notice us. I also noticed that my some of my recipe pages came up really well in searches, sometimes on the first page, which was quite something!

I was wondering more how come these people found me. One thing I did now that I kept searching for my article was to resubmit the article, since they had indexed the October 10 version and I had added a lot to that.

Probably you are ranking for long tail keywords. Most of the time Google ranks your content for something even if it is not what you targeted. This is the reason why writing with LSI in mind works.  I have been experimenting with it and I am getting better results.

You're right. I rank better for long-tail keywords. But I'm using long-tail keywords for this Christmas article as well. It's just that here I have a ton of competition from people who use very similar keywords.

As for LSI, don't we all write for it? I think we do. We describe things, thus allowing Google to know what we mean. I'm wondering about the Knowledge Graph though. It was supposedly launched in March. Where is it?

If you google for LSI tool you can find some tools where you can input keywords. The tool scans the top results and gives you LSI terms and keywords I keep them in mind while writing. They are helping me a lot.