Perhaps you should try some spelling variations:
improv\\" » improve\\" (Expand Search), improved\\" (Expand Search)
improvee\\" » improveee\\" (Expand Search), improvedee\\" (Expand Search), improve\\" (Expand Search), improved\\" (Expand Search)
improveed\\" » improveeed\\" (Expand Search), improvedeed\\" (Expand Search), improved\\" (Expand Search), improvedd\\" (Expand Search), improve\\" (Expand Search)
improveeeeed\\" » improveeeeeed\\" (Expand Search), improvedeeeeed\\" (Expand Search), improveeeed\\" (Expand Search), improvedeeed\\" (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 (improvee\\\" OR improveed\\\"))) OR (\\\"theatre improveeeeed\\\"))\\"\"".
• Removing quotes may allow a broader search: ((\ theatre (improv\ OR (improvee\ OR improveed\ ))) OR (\ theatre improveeeeed\ )).