Thus it will be useful to use operators like not first, and then the and. Similarly, the operator or will yield a larger list, and should be used before use of the operator and in a second search within the results. Use quote marks when you want to be specific about the string and the exact sequence of the words. A number of words of common use such as and , or , the are usually excluded by most search engines. Always use the lower case unless you want to search only for the upper case.
Most engines are case sensitive.
Lower case words will search for both lower and upper cases. Use special keywords like anchor, applet, host, url etc. Always use the advanced search made available by the search engine. Read up the help section provided there on how to use the advanced search. When a search does not yield the desired result, most of the time people try with a modified input on the same search engine rather than searching the same word or phrase on a different engine, the apparent assumption being that all search engines are the same.