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)
improveeddeeee\" » improveeeddeeee\" (Expand Search), improvedeeddeeee\" (Expand Search)
improvedeedededede\" » improveedeedededede\" (Expand Search), improvededeedededede\" (Expand Search), improvededededede\" (Expand Search), improveedededede\" (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 improveeddeeee\\")) OR (\\"theatre improvedeedededede\\"))\"".
• Removing quotes may allow a broader search: (( theatre ((improv OR improvede ) OR improveeddeeee )) OR ( theatre improvedeedededede )).