Use double quotes to search an exact phrase in any index. (Single quotation marks are ignored). For example, searching "lord of the rings" will only return records that contain that exact phrase.
Place your search terms in parenthesis to return search results on words in any order. For example, searching (lord of the rings) will return records that contain all of those words, but not necessarily in that order.
Use a question mark for single character right-hand truncation, for example to find nap or naps, search nap?.
Use a star for multiple character right-hand truncation, for example to find nap or naps or napping, search nap*.
Use a question mark or star for center truncation, for example to find woman or women, search wom?n [single character] or wo*n [multiple character].
Use a tilde combined with double quotes to make two terms appear within a certain number of characters of each other, for example "roman empire"~10 would search for the two words within 10 characters of each other.