Perhaps you should try some spelling variations:
improv\\" » improve\\" (Expand Search), improved\\" (Expand Search)
improvededeede\\" » improveededeede\\" (Expand Search), improvedededeede\\" (Expand Search), improveddeede\\" (Expand Search), improvedeede\\" (Expand Search)
improveee\" » improveeee\" (Expand Search), improvedeee\" (Expand Search), improve\" (Expand Search), improved\" (Expand Search)
improvede\" » improveede\" (Expand Search), improvedede\" (Expand Search), improved\" (Expand Search), improve\" (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 (improvededeede\\\" OR improveee\\"))) OR (\\\"theatre improvede\\"))\\"\"".
• Removing quotes may allow a broader search: ((\ theatre (improv\ OR (improvededeede\ OR improveee ))) OR (\ theatre improvede )).