Perhaps you should try some spelling variations:
improv\ » improve\ (Expand Search), improved\ (Expand Search)
improvedde » improveedde (Expand Search), improvededde (Expand Search), improved (Expand Search), improvede (Expand Search), improvee (Expand Search)
improvee » improveee (Expand Search), improvedee (Expand Search), improve (Expand Search), improved (Expand Search)
improvedeed » improveedeed (Expand Search), improvededeed (Expand Search)
improvedd » improveedd (Expand Search), improvededd (Expand Search), improved (Expand Search), improve (Expand Search)

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((\ theatre ((improv\ OR (improvedde OR improvee) ) OR improvedeed )) OR (\ theatre improvedd ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\ theatre ((improv\ OR (improvedde OR improvee) ) OR improvedeed )) OR (\ theatre improvedd ))".
• Adding a wildcard symbol may retrieve word variants: ((\ theatre ((improv\ OR (improvedde OR improvee) ) OR improvedeed )) OR (\ theatre improvedd ))*.