Google Search provides many options for customized search , using Boolean operators such as : exclusion ( '' - xx '' ) , alternatives ( `` xx OR yy '' ) , and wildcards ( `` x \* x '' ) .
Google Search provides many options for customized search ( see below : Search options ) , using Boolean operators such as : exclusion ( '' - xx '' ) , inclusion ( '' + xx '' ) , alternatives ( `` xx OR yy '' ) , and wildcard ( `` x \* x '' ) .