Mitch Prince (MSFT)
I should have been a little more clear. When you submit a simple search, you are submitting a keyword search. This uses the keyword query syntax. When you use the advance search it uses the SQL query syntax. The query that's submitted for a simple search is exactly what the user has typed into the search box.
In the example you provided, the keyword search query would be:
enterprise search scope:myscope
Based on your query, I'm assuming that you entered query with the two words (enterprise and search) in the "All of these words" box and selected the scope myscope (you changed the web part property to expose the search scopes)
In the simple search box we use an implicit AND operator. This query would find documents where both words exist. Keep in mind that this is different than if you surrounded these two keywords in one set of double quotes ("enterprise search") which would find documents with that exact phrase in your scope.
- Mitch