Perhaps you should try some spelling variations:
improv » improve (Expand Search), improved (Expand Search)
improveed » improveeed (Expand Search), improvedeed (Expand Search), improved (Expand Search), improve (Expand Search)
improvedde » improveedde (Expand Search), improvededde (Expand Search), improved (Expand Search), improvede (Expand Search), improvee (Expand Search)
improvedd » improveedd (Expand Search), improvededd (Expand Search), improved (Expand Search), improve (Expand Search)
improveee » improveeee (Expand Search), improvedeee (Expand Search), improve (Expand Search), improved (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 (improveed OR improvedde)) OR improvedd )) OR ( theatre improveee ))~".
• Adding a wildcard symbol may retrieve word variants: (( theatre ((improv OR (improveed OR improvedde)) OR improvedd )) OR ( theatre improveee ))*.