Issue Title
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Search tips:

  • Search terms are case-insensitive but letters with accents must be entered exactly.
  • 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., education OR research
  • Exclude a word by prefixing it with - or NOT; e.g. graph -infinite or graph NOT infinitex.
  • 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* morality would match documents containing "factoring" or "factorial"