Perhaps you should try some spelling variations:
improv\\" » improve\\" (Expand Search), improved\\" (Expand Search)
improvededddeed\" » improveededddeed\" (Expand Search), improvedededddeed\" (Expand Search), improveddddeed\" (Expand Search), improvedddeed\" (Expand Search)
improveee\" » improveeee\" (Expand Search), improvedeee\" (Expand Search), improve\" (Expand Search), improved\" (Expand Search)
improvede\" » improveede\" (Expand Search), improvedede\" (Expand Search), improved\" (Expand Search), improve\" (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 (\\\"theatre ((improvededddeed\\" OR improveee\\") OR improvede\\")))~\\"\"".
• Removing quotes may allow a broader search: ((\ theatre improv\ ) OR (\ theatre ((improvededddeed OR improveee ) OR improvede )))~.