Perhaps you should try some spelling variations:
improv\" » improve\" (Expand Search), improved\" (Expand Search)
improveed\" » improveeed\" (Expand Search), improvedeed\" (Expand Search), improved\" (Expand Search), improve\" (Expand Search)
improveede\\" » improveeede\\" (Expand Search), improvedeede\\" (Expand Search), improvede\\" (Expand Search), improvee\\" (Expand Search), improved\\" (Expand Search)
improveedede\\" » improveeedede\\" (Expand Search), improvedeedede\\" (Expand Search), improvedede\\" (Expand Search), improveede\\" (Expand Search), improvedde\\" (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 improveed\\")) OR (\\\"theatre (improveede\\\" OR improveedede\\\")))~\\"\"".
• Removing quotes may allow a broader search: ((\ theatre (improv OR improveed )) OR (\ theatre (improveede\ OR improveedede\ )))~.