Consider synonyms, related words, and variations of the terms such as plurals. Read the instructions on the search engine home page. Learn simple Boolean search logic. Refine the search. AND, Proximity Operators, Precise Keywords Try more than one search engine.
Boolean operators are key to many successful searches.
They are used to expand or narrow a search and are represented by the words AND , OR and NOT . The following diagrams illustrate their use. This is the shaded area in the diagram at the left. This is an inclusive search as shown in the shaded area in the diagram at the left. This is shown in the shaded area in the diagram at the left.