Perhaps you should try some spelling variations:
"20-minute manager service" » "20-minute managed service", "20-minute managed services", "20-minute managing service", "20-site manager service", "20-gute manager service"
"20-state manager series" » "20-state manager queries", "20-state manager server", "20-state manager secrets", "20-late manager series", "20-storage manager series", "20-update manager series"

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: (("20-state manager series") OR ("20-minute manager service")).
• Removing quotes may allow a broader search: (( 20-state manager series ) or ( 20-minute manager service )).
• Adding a wildcard symbol may retrieve word variants: (("20-state manager series") or ("20-minute manager service"))*.