The default search term operator is AND
You can use brackets, AND OR and NOT to improve your search. For example: C# AND NOT ( VB or SQL )
A query of a single * will return everything, filtered by any filters.
Search by Author: author:"author name"
Filter by tag: tag:C# or tag:(C++ or Java)
Wildcard search use: "?" or "*" eg. gr?d or gr*
Gathering information about your site visitors can be an important task-- as many site owners want metrics about users. Additionally, user information (such as the type of browser, or computer/mobile device they are using) can be processed and used to provide the user with an optimal experience. For example, if you want to provide a different experience for your mobile users, you can use the information gathered by using the technique in this tutorial to do so.