From Bashlinux
Looking for a specific phrase
Just enclose the phrase in quotes
"I need to found this string" +"and this too" +"not necessary together"
Looking for a book
The following will string get rid the regular web pages htm/html using `inurl` in the search string
-inurl:htm -inurl:html intitle:”index of” +(”/ebooks”|”/book”) +(chm|pdf|zip)