Perhaps you should try some spelling variations:
improv\ » improve\ (Expand Search), improved\ (Expand Search)
improvedee\ » improveedee\ (Expand Search), improvededee\ (Expand Search), improved\ (Expand Search)
improveeed\ » improveeeed\ (Expand Search), improvedeeed\ (Expand Search), improved\ (Expand Search), improveed\ (Expand Search), improveded\ (Expand Search)
improvedee » improveedee (Expand Search), improvededee (Expand Search), improved (Expand Search)
improvee » improveee (Expand Search), improvedee (Expand Search), improve (Expand Search), improved (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 (\ theatre (((improvedee\ OR improveeed\) OR improvedee ) OR improvee )))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\ theatre improv\ ) OR (\ theatre (((improvedee\ OR improveeed\) OR improvedee ) OR improvee )))".
• Adding a wildcard symbol may retrieve word variants: ((\ theatre improv\ ) OR (\ theatre (((improvedee\ OR improveeed\) OR improvedee ) OR improvee )))*.