Perhaps you should try some spelling variations:
improv\\" » improve\\" (Expand Search), improved\\" (Expand Search)
improveede\" » improveeede\" (Expand Search), improvedeede\" (Expand Search), improved\" (Expand Search), improvede\" (Expand Search), improvedde\" (Expand Search), improvee\" (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)

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 (improveede\\" OR improvee\\"))) OR (\\\"theatre improveed\\\"))\\"\"".
• Removing quotes may allow a broader search: ((\ theatre (improv\ OR (improveede OR improvee ))) OR (\ theatre improveed\ )).