Perhaps you should try some spelling variations:
improv\\" » improve\\" (Expand Search), improved\\" (Expand Search)
improvee\" » improveee\" (Expand Search), improvedee\" (Expand Search), improve\" (Expand Search), improved\" (Expand Search)
improveede\" » improveeede\" (Expand Search), improvedeede\" (Expand Search), improvede\" (Expand Search), improvedde\" (Expand Search), improved\" (Expand Search)
improveededeed\" » improveeededeed\" (Expand Search), improvedeededeed\" (Expand Search), improvededeed\" (Expand Search), improveddedeed\" (Expand Search), improveddeed\" (Expand Search)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "\"\\"((\\\"theatre ((improv\\\" OR improvee\\") OR improveede\\")) OR (\\\"theatre improveededeed\\"))*\\"\"".
• Removing quotes may allow a broader search: ((\ theatre ((improv\ OR improvee ) OR improveede )) OR (\ theatre improveededeed ))*.