<listitem><para>The first tab lets you specify terms to search

      for, and permits specifying multiple clauses which are combined

      to build the search.</para>

      </listitem> 

      <listitem><para>The second tab lets filter the results according

      to file size, date of modification, mime type, or

      location.</para>

      </listitem>

      </orderedlist>

      <para>Click on the <guilabel>Start Search</guilabel> button in

        the advanced search dialog, or type <keycap>Enter</keycap> in

        any text field to start the search. The button in

        the main window always performs a simple search.</para>

      <para>Click on the <literal>Show query details</literal> link at

        the top of the result page to see the query expansion.</para>

      <sect3 id="rcl.search.complex.terms">

      <title>Avanced search: the "find" tab</title>

        <para>This part of the dialog lets you constructc a query by

      </sect3>

      <sect3 id="rcl.search.complex.filter">

      <title>Avanced search: the "filter" tab</title>

      <para>This part of the dialog has several sections which allow

      filtering the results of a search according to a number of

      criteria</para>

      <itemizedlist>

      <listitem>

      <para>The first section allows filtering by dates of last

      modification. You can specify both a minimum and a maximum date. The

      initial values are set according to the oldest and newest documents

      found in the index.</para>

      </listitem>

      <listitem>

      <para>The next section allows filtering the results by

            file size. There are two entries for minimum and maximum

            size. Enter decimal numbers. You can use suffix multipliers:

            <literal>k/K</literal>, <literal>m/M</literal>,

            <literal>g/G</literal>, <literal>t/T</literal> for 1E3, 1E6,

            1E9, 1E12 respectively.</para>

      </listitem>

      <listitem>   

      <para>The next section allows filtering the results by their mime

            types, or mime categories (ie: media/text/message/etc.).</para>

          <para>You can transfer the types between two boxes, to define

            which will be included or excluded by the search.</para>

          <para>The state of the file type selection can be saved as

            the default (the file type filter will not be activated at

            program start-up, but the lists will be in the restored

            state).</para> 

      </listitem>

      <listitem>

          <para>The bottom section allows restricting the search results to a

            sub-tree of the indexed area. You can use the

            <guilabel>Invert</guilabel> checkbox to search for files not in

            the sub-tree instead. If you use directory filtering often and on

            big subsets of the file system, you may think of setting up

            multiple indexes instead, as the performance may be

            better.</para>

          <para>You can use relative/partial paths for filtering. Ie,

          entering <literal>dirA/dirB</literal> would match either

          <filename>/dir1/dirA/dirB/myfile1</filename> or

          <filename>/dir2/dirA/dirB/someother/myfile2</filename>.</para> 

      </listitem>

      </itemizedlist>

     </sect3>