Perhaps you should try some spelling variations:
improv\\" » improve\\" (Expand Search), improved\\" (Expand Search)
improvedeede\" » improveedeede\" (Expand Search), improvededeede\" (Expand Search), improvedede\" (Expand Search), improveede\" (Expand Search)
improvede\" » improveede\" (Expand Search), improvedede\" (Expand Search), improved\" (Expand Search), improve\" (Expand Search)
improvedede\\" » improveedede\\" (Expand Search), improvededede\\" (Expand Search), improvedde\\" (Expand Search), improvede\\" (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 improvedeede\\")) OR (\\\"theatre (improvede\\" OR improvedede\\\")))~\\"\"".
• Removing quotes may allow a broader search: ((\ theatre (improv\ OR improvedeede )) OR (\ theatre (improvede OR improvedede\ )))~.