Perhaps you should try some spelling variations:
"ar guides to teaching" » "art guides to teaching", "10 guides to teaching", "12 guides to teaching"
"1 guides to teaching" » "10 guides to teaching", "12 guides to teaching", "1 guide to teaching"
"_ guides to teaching" » "_ guide to teaching", "_ guided to teaching", "_ guinea to teaching"

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: (((("ar guides to teaching") OR ("1 guides to teaching"))) OR ("_ guides to teaching")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"ar guides to teaching\") OR (\"1 guides to teaching\"))) or (\"_ guides to teaching\"))".
• Removing quotes may allow a broader search: (((( ar guides to teaching ) OR ( 1 guides to teaching ))) or ( _ guides to teaching )).
• Adding a wildcard symbol may retrieve word variants: (((("ar guides to teaching") OR ("1 guides to teaching"))) or ("_ guides to teaching"))*.