Phrases
Words are handled differently by different search tools. Many search tools such as Google & Summon assume AND -- so if you enter nursing ethics, you'll retrieve items that contain both words in any order, and perhaps separated by other words.
Do you want a phrase? Use "quotation marks" to indicate a phrase.
For example, in Summon:
- "nursing ethics" retrieves about 16,000 items
- nursing AND ethics retrieves about 500,000 items
- nursing OR ethics retrieves about 7,900,000 items
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Caution using quotations in PubMed as it turns OFF automatic mapping to MeSH terms |