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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"
هندز فری تغییر صدا خرید ساعت مچی ادکلن مردانه فروشگاه اینترنتی پرشین سیلز همکاری در فروش دستبند پاور بالانس نیم ست گن لاغری مردانه اس ام اس تبليغاتي