Perhaps you should try some spelling variations:
"1994 world trotting championships" » "1994 world fighting championship", "1994 world winning championships", "1994 world treating championships", "1994 world trusting championships", "1994 world protecting championships", "1992 world trotting championships", "1993 world trotting championships", "1995 world trotting championships"
"1997 world protein championships" » "1997 world eastern championship", "1997 world european championship", "1997 world protein relationships", "1997 world project championships", "1997 worldwide protein championships", "1992 world protein championships", "1993 world protein championships", "1995 world protein 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: (("1997 world protein championships") OR ("1994 world trotting championships")).
• Removing quotes may allow a broader search: (( 1997 world protein championships ) or ( 1994 world trotting championships )).
• Adding a wildcard symbol may retrieve word variants: (("1997 world protein championships") or ("1994 world trotting championships"))*.