For now, if you are by-passing the core lessons, I would suggest directing theory questions to Christopher Schlegel. He's THE MAN for Guitar Theory. He may have theory links ready that he can send you.
I see the point of using advance search. I tried using the "check box" for search, "keyword" for search, and both check box and keyword and found difference result for each
Would a table of content as one would find in a book work..?
Here is a starting place from Christopher lessons.
http://www.guitartricks.com/tutorial.php?input=495
Good Luck