How should I create a query to search for information on additional motion sensors? After all, you can only use one word from 3-14 characters, "playstation" can not be used because it more than 14 characters, "move" or "motion" or "ps3" can not be used, because it is "too common words", "ps move "can not be used because it is more than one word?

Yeah, it's a hard situation :)
Try "motion controller" - it finds relative results.

I'll dig into forum settings and try to loosen the "too common words" restrictions. Sometimes it really becomes a pain in the ass :)

OK, I've changed search settings. Try now, you can use any search strings you've mentioned in your post.

thankee