Perhaps you should try some spelling variations:
"mexican national radio chess championships" » "mexican national radio chess championship", "american national radio chess championships", "mexico's national radio chess championships", "african national radio chess championships", "mexican national radio access championships", "mexican national radio chemo championships", "mexican national radio acess championships"
"mexican national radio race championships" » "mexican national radio a championship", "mexican national radio _ championships", "mexican national radio rally championship", "american national radio race championships", "mexico's national radio race championships", "african national radio race championships", "mexican national radio tracer championships", "mexican national radio rap championships", "mexican national radio rede championships"

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: (("mexican national radio race championships") OR ("mexican national radio chess championships")).
• Removing quotes may allow a broader search: (( mexican national radio race championships ) or ( mexican national radio chess championships )).
• Adding a wildcard symbol may retrieve word variants: (("mexican national radio race championships") or ("mexican national radio chess championships"))*.