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", "1995 world trotting championships", "1999 world trotting championships"
"1993 world trotting championships" » "1993 world fighting championship", "1993 world winning championships", "1993 world treating championships", "1993 world trusting championships", "1993 world protecting championships", "1992 world trotting championships"
"1997 world winning relationships" » "1997 world mining relationships", "1997 world finding relationships", "1997 world financing relationships", "1997 world signing relationships", "1997 worth winning relationships", "1992 world winning relationships", "1995 world winning relationships", "1999 world winning relationships"
"1997 world running championships" » "1997 world winning championships", "1997 world win championships", "1997 works running championships", "1997 work running championships", "1997 world training championships", "1992 world running championships", "1995 world running championships", "1999 world running 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: (((("1994 world trotting championships") OR ("1993 world trotting championships"))) OR ((("1997 world winning relationships") OR ("1997 world running championships")))).
• Removing quotes may allow a broader search: (((( 1994 world trotting championships ) or ( 1993 world trotting championships ))) or ((( 1997 world winning relationships ) or ( 1997 world running championships )))).
• Adding a wildcard symbol may retrieve word variants: (((("1994 world trotting championships") or ("1993 world trotting championships"))) or ((("1997 world winning relationships") or ("1997 world running championships"))))*.