Searching works best if you limit yourself to single words or phrases, such as "Binoculars", "France", "MP3", etc. Searching is not case-sensitive, so it doesn't matter how you type your search text.
Searching attempts to match your search text with the:
If you want to restrict your search to a particular type of product, select the product type in the drop-down list; otherwise, leave it set to "any category".