2011 study found that the average length of queries had grown steadily over time and the average length of non-English language queries had increased more than English ones. Google implemented the hummingbird update in August 2013 to handle longer search queries since more searches are conversational (e.g. "where is the nearest coffee shop?").

Structured queries

With search engines that support Boolean operators and parentheses, a technique traditionally used by librarians can be

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