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• Search terms are case-insensitive
• Common words are ignored
• By default only papers containing all terms in the query are returned (i.e., AND is implied)
• Combine multiple words with OR to find papers containing either term; e.g., education OR research
• Use parentheses to create more complex queries; e.g., archive ((journal OR conference) NOT theses)
• Search for an exact phrase by putting it in quotes; e.g., "open access publishing"
• Exclude a word by prefixing it with - or NOT; e.g. online -politics or online NOT politics
• Use * in a term as a wildcard to match any sequence of characters; e.g., soci* morality would match documents containing "sociological" or "societal"