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word1 word2 |
finds documents containing word1 and word2 |
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"word1 word2" |
finds documents containing word1 and word2 together (phrase) |
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word1 OR word2 |
finds documents containing word1 or word2 |
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word1 OR word2 AND word3 |
finds documents containing word3 and either word1 or word2
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word1 -word2 |
finds documents containing word1 and NOT word2 |
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(w1 w2 w3) OR (w4 w5) |
finds documents containing a combination of either w1, w2 and w3 OR w4 and w5 |
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((w1 w2 w3) OR (w4 w5)) AND "w6 w7" |
finds documents containing a combination of either w1, w2 and w3 OR w4 and w5 AND the phrase "w6 w7" |