A combinations of the search types (model, website, date) isn't possible in one search request. (Currently on the TODO list.)
Only one search item per search is possible. So you cannot enter multiple models/websites/sets at once.
Case insensitive. Example: candice luca will also find Candice Luca.
First names or last names will also find full names. Example: candice will also find Candice Luca, and luca will also find Candice Luca.
Search will find *similar names*, names with small typos. Example: Candice Lucca will also find Candice Luca.
But Similar Search will only look for complete name matches, so if you search for a first name it will only look at first names and not at full names (the combination of a first and last name). Example: Canddddice will not find Candice Lucca
Use the domain name for websites. Example: perfectgonzo.com (with ".com" but without "www.").
Searches for sets and models of a given date.
Use this format year-month-day or yearmonthday. Example: 2015-01-02 or 20150102