Thanks for the comments.
The use of syntaxis is not very friendly in my mind, particularly with the range and number of tags and notebooks I have created over time. The addition of a "multiple-tag/notebook-selection-menu" would tremendously help.
DTLow - I understand Evernote/Mac has more advanced search features, but I use Windows.
Don Dz - I have saved searches that help but cannot replace the requested function primarily because of the dynamic nature of most searches. I might not be a skillful user, but I find it almost impossible and very time consuming trying to anticipate all the options in tags/notebooks. I have added special characters (+ & $ #), keywords and numbers to better organize my notes which makes syntaxis even more complex.