Perhaps you should try some spelling variations:
improv\\" » improve\\" (Expand Search), improved\\" (Expand Search)
improvedeee\" » improveedeee\" (Expand Search), improvededeee\" (Expand Search), improvedee\" (Expand Search), improveee\" (Expand Search)
improvede\\" » improveede\\" (Expand Search), improvedede\\" (Expand Search), improved\\" (Expand Search), improve\\" (Expand Search)
improvededede\" » improveededede\" (Expand Search), improvedededede\" (Expand Search), improveddede\" (Expand Search), improvedede\" (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 improvedeee\\")) OR (\\\"theatre (improvede\\\" OR improvededede\\")))\\"\"".
• Removing quotes may allow a broader search: ((\ theatre (improv\ OR improvedeee )) OR (\ theatre (improvede\ OR improvededede ))).