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)
improvededdedeeee\" » improveededdedeeee\" (Expand Search), improvedededdedeeee\" (Expand Search), improvedddedeeee\" (Expand Search), improveddedeeee\" (Expand Search)
improvedeeddede\" » improveedeeddede\" (Expand Search), improvededeeddede\" (Expand Search), improvededdede\" (Expand Search), improveeddede\" (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 improvede\\") OR improvededdedeeee\\")) OR (\\"theatre improvedeeddede\\"))\"".
• Removing quotes may allow a broader search: (( theatre ((improv OR improvede ) OR improvededdedeeee )) OR ( theatre improvedeeddede )).