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  1. You may wish to customize which boolean search operator is used by default. The DSpace search engine defaults to using boolean OR (requires at least one search term to be present) when multiple terms are entered . However, if desired, you may specify to use boolean AND (requires all terms to be present) by modifying the following line in dspace.cfg:
    search.operator = OR
  2. The specified search operator will be the default operator used whenever someone enters multiple terms into the main search box
  3. If you want to modify which metadata fields are searchable, see Modify search fields