Perhaps you should try some spelling variations:
improv\\" » improve\\" (Expand Search), improved\\" (Expand Search)
improvede\" » improveede\" (Expand Search), improvedede\" (Expand Search), improved\" (Expand Search), improve\" (Expand Search)
improvedeed\" » improveedeed\" (Expand Search), improvededeed\" (Expand Search), improveded\" (Expand Search), improveed\" (Expand Search)
improvededde\\" » improveededde\\" (Expand Search), improvedededde\\" (Expand Search), improveddde\\" (Expand Search), improvedde\\" (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 improvede\\") OR improvedeed\\")) OR (\\\"theatre improvededde\\\"))\\"\"".
• Removing quotes may allow a broader search: ((\ theatre ((improv\ OR improvede ) OR improvedeed )) OR (\ theatre improvededde\ )).