Using an Engine
Using a Web search engine is often different than searching a library database. Web search engines do not have specific fields or structured subject organization. When you enter words into a search engine, the program attempts to match each word with as many pages as possible. This is similar to keyword searching in a library database.
The following example will demonstrate some general tips for using a Web search engine. Look in the help pages in your favorite search engine to find some more advanced searching techniques.
Internet advertising and banner ads
"Internet advertising" "banner ads"
+"Internet advertising" +"banner ads"