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)
improvededeed\\" » improveededeed\\" (Expand Search), improvedededeed\\" (Expand Search), improveddeed\\" (Expand Search), improvedeed\\" (Expand Search)
improvedd\\" » improveedd\\" (Expand Search), improvededd\\" (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 (\\\"theatre (improvede\\\" OR (improvededeed\\\" OR improvedd\\\"))))\\"\"".
• Removing quotes may allow a broader search: ((\ theatre improv\ ) OR (\ theatre (improvede\ OR (improvededeed\ OR improvedd\ )))).