Perhaps you should try some spelling variations:
"lecture notes in physics graphs" » "lecture notes in physical graph", "lecture notes in physics glass", "lecture notes in physics phs"
"lecture notes in physics goals" » "lecture notes in physics glass", "lecture notes in physics godel's", "lecture notes in physics metals"
"lecture notes in physics games" » "lecture notes in physical games", "lecture notes in physics gauge"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lecture notes in physics graphs") OR ("lecture notes in physics goals"))) OR ("lecture notes in physics games")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"lecture notes in physics graphs\") OR (\"lecture notes in physics goals\"))) or (\"lecture notes in physics games\"))".
• Removing quotes may allow a broader search: (((( lecture notes in physics graphs ) OR ( lecture notes in physics goals ))) or ( lecture notes in physics games )).
• Adding a wildcard symbol may retrieve word variants: (((("lecture notes in physics graphs") OR ("lecture notes in physics goals"))) or ("lecture notes in physics games"))*.