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Advanced Search

Advanced search finds records using keywords located anywhere in a record, or only in specific fields.

To perform an advanced search:

  1. Type in the search term(s) you want to find in the Search field. (Punctuation, case, and word order are ignored.)
  2. Select any of these, all of these, or as a phrase from the dropdown list to identify how multiple words entered in the search are to be combined.
  3. Select a different index from the next drop-down list to narrow or widen the scope of your search.
  4. You may continue adding to your search by selecting a Boolean operator (AND, OR, or NOT) and adding more terms.
  5. Select from the remaining fields to optionally limit your search by the available criteria.
  6. Click the Search button to begin your search.

"Thesaurus term (Subject) search in articles (AGRICOLA)"

Subject terms or NAL Subject Headings are preferred terms from the NAL Thesaurus that help in the retrieval of data containing synonyms or other variants of them.
How it works:

  1. Find a term in the NAL Thesaurus that you are interested in: For example, "corn ears".
  2. Go to "Advanced tab" at NAL Article Citation Database and type "corn ears" in the search box, select "as a phrase" from the first dropdown and "Subject" from the second dropdown and hit the search button.
  3. You will retrieve all the articles containing the phrase "corn ears" (NALT preferred term), maize ears (synonym) and many hidden variants of the corn ears (such as ear kernel, ear of corn, tassel and ear, maize ear, etc.) in one search.