Perhaps you should try some spelling variations:
"1997 world signing championships" » "1997 world trotting championships", "1997 world win championships", "1997 world designing championships", "1997 world mining championships", "1997 worlds designing championships", "1992 world signing championships", "1993 world signing championships", "1999 world signing championships"
"1995 world fighting championship" » "1995 world trotting championships", "1995 world lighting championship", "1995 world righting championship", "1995 worth fighting championship", "1992 world fighting championship", "1993 world fighting championship", "1999 world fighting championship"
"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 worth winning championships", "1992 world winning championships", "1993 world winning championships", "1999 world winning 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: (("1995 world fighting championship") OR ((("1997 world signing championships") OR ("1997 world winning championships")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"1995 world fighting championship\") or (((\"1997 world signing championships\") OR (\"1997 world winning championships\"))))".
• Removing quotes may allow a broader search: (( 1995 world fighting championship ) or ((( 1997 world signing championships ) OR ( 1997 world winning championships )))).
• Adding a wildcard symbol may retrieve word variants: (("1995 world fighting championship") or ((("1997 world signing championships") OR ("1997 world winning championships"))))*.