| Space |
Search for data that contains both search terms. |
lung cancer
→ Search for data that contains both "lung" and "cancer".
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| | |
Search for data that contains either of the two search terms (at least one). |
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lung | cancer
→ Search for data that contains either "lung" or "cancer".
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| ! |
Exclude a specific term.
Exclude data that contains the search term following NOT. |
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lung !cancer
→ Search for data that contains "lung" but excludes "cancer".
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| [ ] |
Search for data that exactly matches the phrase within square brackets.
IUPAC name search, long phrase search |
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[lung cancer]
→ Search for data that exactly matches the phrase "lung cancer".
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| ( ) |
Grouping/precedence operator for complex queries. |
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(bio
(lung | cancer)
)
→ Search for data that contains either "lung" or "cancer" and also contains "bio".
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| * |
Partial match using a wildcard.
Search for data that matches the pattern where * represents zero or more characters. |
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canc*
→ Search for data that contains terms starting with "canc", such as "cancer" or "cancers".
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