If searching for one word, just type it in lower case.  For example, tioga

If searching for a multi-word phrase, type each word with 'and' in between.  For example, if looking for Tioga Lake, you would type tioga and lake in the search box.  If you type only tioga lake the search engine will look for every page that has the word tioga or the word lake.  If you were looking for Lassen Volcanic National Park, type lassen and volcanic and national and park.

You cannot use ampersands (&) or plus symbols (+).  The search will ignore them.

Using upper case letters may limit search returns.  All lower case is best.