Use quotes to search for an exact word or set of words in a specific order, without normal improvements such as spelling corrections and synonyms. This option is handy when searching for song lyrics or a line from literature. [ "imagine all the people" ]
Add a addition sign(+) before a word to limit to all results that include that word. This is especially useful for limiting your results to sites that contain your search terms. [+abilene +"city ordinance"]
Add the term intitle: before your search term to only retrieve results that has your search word in the title of the web site. [intitle:SBDC]
If you have more than one term that you need to have in the title then use the term allintitle: [allintitle: +survey +abilene]
To limit your searches to a type of web site, use the term site: [+"small business" +site:irs.gov]
To limit your searches by a type of file, use the term filetype: [+"marketing books" +filetype:pdf]