Proximity searches look for sets of words or phrases that occur "close" to one another.
近似搜索查找一系列相互“接近”的词语或短语。
Phrase and proximity searches are not currently performed, but they would not be difficult to implement.
短语和近似搜索现在并未实行，但实施并不困难。
Search strategies include single and multiple character wildcard searches, fuzzy and proximity searches, and AND, OR and NOT Boolean operations.
搜索策略包括单个和多个字符通配符搜索、模糊和近似搜索以及 AND、OR 和 NOT Boolean 操作。
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