The need for AND NOT often becomes apparent after you perform an initial search. AND and AND NOT . It significantly narrows your search results, and it should be used as often as possible. A few of the search engines, allow a NEAR search operator. This focuses the search and gives the keywords a higher relationship to each other.
Most search engines interpret lower case letters as either upper or lower case.
Thus, if you want both upper and lower case occurrences returned, type your keywords in all lower case letters. Most search engines interpret singular keywords as singular or plural. If you want plural forms only, make your keywords plural. A few search engines support truncation or wildcard features that allow variations in spelling or word forms. A web page is composed of a number of fields, such as title, domain, host, URL, and link.