Perhaps you should try some spelling variations:
"1997 world winning championships" » "1997 world win championships", "1997 world trotting championships", "1997 world winning relationships", "1997 world running championships", "1997 world mining championships", "1997 world signing championships", "1992 world winning championships", "1995 world winning championships", "1999 world winning championships"
"1994 world fighting championship" » "1994 world trotting championships", "1994 world lighting championship", "1994 world righting championship", "1994 worth fighting championship", "1992 world fighting championship", "1995 world fighting championship", "1999 world fighting championship"
"1993 world fighting championship" » "1993 world trotting championships", "1993 world lighting championship", "1993 world righting championship", "1993 worth fighting championship", "1992 world fighting championship"

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 fighting championship") OR ("1993 world fighting championship"))) OR ("1997 world winning championships")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"1994 world fighting championship\") OR (\"1993 world fighting championship\"))) or (\"1997 world winning championships\"))".
• Removing quotes may allow a broader search: (((( 1994 world fighting championship ) OR ( 1993 world fighting championship ))) or ( 1997 world winning championships )).
• Adding a wildcard symbol may retrieve word variants: (((("1994 world fighting championship") OR ("1993 world fighting championship"))) or ("1997 world winning championships"))*.