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)
improveedeedede\" » improveeedeedede\" (Expand Search), improvedeedeedede\" (Expand Search)
improvedeededede\" » improveedeededede\" (Expand Search), improvededeededede\" (Expand Search), improvedededede\" (Expand Search), improveededede\" (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 (\\"theatre (improveedeedede\\" OR improvedeededede\\")))\"".
• Removing quotes may allow a broader search: (( theatre (improv OR improvede )) OR ( theatre (improveedeedede OR improvedeededede ))).