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  • Common words like "the" are ignored.
  • By default only articles containing all terms in the query are returned (i.e., AND is implied).
  • Combine multiple words with OR to find articles containing either term; e.g., degree OR valency.
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  • Use parentheses to create more complex queries; e.g., graph ((cycle OR matching) NOT random).
  • Search for an exact phrase by putting it in quotes; e.g., "exponential generating function".
  • Use * in a term as a wildcard to match any sequence of characters; e.g., factori* would match documents containing "factoring", "factorising", "factorizing", "factorisation" or "factorization".

ISSN: 1077-8926