Perhaps you should try some spelling variations:
improv\\" » improve\\" (Expand Search), improved\\" (Expand Search)
improveded\\" » improveeded\\" (Expand Search), improvededed\\" (Expand Search), improved\\" (Expand Search), improvedd\\" (Expand Search)
improvede\\" » improveede\\" (Expand Search), improvedede\\" (Expand Search), improved\\" (Expand Search), improve\\" (Expand Search)
improvededde\" » improveededde\" (Expand Search), improvedededde\" (Expand Search), improvedde\" (Expand Search), improveddde\" (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 improveded\\\")) OR (\\\"theatre (improvede\\\" OR improvededde\\")))~\\"\"".
• Removing quotes may allow a broader search: ((\ theatre (improv\ OR improveded\ )) OR (\ theatre (improvede\ OR improvededde )))~.