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)
improvedeeed\" » improveedeeed\" (Expand Search), improvededeeed\" (Expand Search), improvedeed\" (Expand Search), improveeed\" (Expand Search)
improvedeede\" » improveedeede\" (Expand Search), improvededeede\" (Expand Search), improvedede\" (Expand Search), improveede\" (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 (\\\"theatre (improvedeeed\\" OR improvedeede\\")))\\"\"".
• Removing quotes may allow a broader search: ((\ theatre (improv\ OR improvede\ )) OR (\ theatre (improvedeeed OR improvedeede ))).