Search by template Solr

If I have an entry with the keywords Chris Muench, I want to be able to match Mue or Chr. How can I do this with a solr request. I am currently doing the following:

$results = $solr->search('"'.Apache_Solr_Service::escape($_GET['textsearch']).'"~100', 0, 100, array('fq' => 'type:datacollection'));

He doesn't match Mue or Chr, but he matches Muench

Scheme:

<?xml version="1.0" encoding="UTF-8" ?>
<schema name="rocdocs" version="1.4">
  <types>
    <!-- The StrField type is not analyzed, but indexed/stored verbatim. -->
    <fieldType name="string" class="solr.StrField" sortMissingLast="true" omitNorms="true"/>
    <fieldType name="int" class="solr.TrieIntField" precisionStep="0" omitNorms="true" positionIncrementGap="0"/>
    <fieldType name="text_general" class="solr.TextField" positionIncrementGap="100">
      <analyzer type="index">
        <tokenizer class="solr.StandardTokenizerFactory"/>
        <filter class="solr.StopFilterFactory" ignoreCase="true" words="stopwords.txt" enablePositionIncrements="true" />
        <!-- in this example, we will only use synonyms at query time
        <filter class="solr.SynonymFilterFactory" synonyms="index_synonyms.txt" ignoreCase="true" expand="false"/>
        -->
        <filter class="solr.LowerCaseFilterFactory"/>
      </analyzer>
      <analyzer type="query">
        <tokenizer class="solr.StandardTokenizerFactory"/>
        <filter class="solr.StopFilterFactory" ignoreCase="true" words="stopwords.txt" enablePositionIncrements="true" />
        <filter class="solr.SynonymFilterFactory" synonyms="synonyms.txt" ignoreCase="true" expand="true"/>
        <filter class="solr.LowerCaseFilterFactory"/>
      </analyzer>
    </fieldType>
 </types>


 <fields>
    <field name="type" type="string" indexed="true" stored="true" required="true" />
    <field name="mongo_id" type="string" indexed="true" stored="true" required="true" />
    <field name="nid" type="int" indexed="true" stored="true" required="true" />
    <field name="keywords" type="text_general" indexed="true" stored="false" />
 </fields>

 <!-- Field to use to determine and enforce document uniqueness. 
      Unless this field is marked with required="false", it will be a required field
   -->
 <uniqueKey>mongo_id</uniqueKey>

 <!-- field for the QueryParser to use when an explicit fieldname is absent -->
 <defaultSearchField>keywords</defaultSearchField>
 <!-- SolrQueryParser configuration: defaultOperator="AND|OR" -->
 <solrQueryParser defaultOperator="OR"/>
</schema>