Perhaps you should try some spelling variations:
"1992 world treating championships" » "1992 world trotting championships", "1992 world creating champions", "1992 world fighting championship", "1992 world creating championships", "1992 world trading championships", "1992 world setting championships", "1993 world treating championships"
"1997 world wing championships" » "1997 world winning championships", "1997 world world championships", "1997 world _ championships", "1993 world wing championships", "1995 world wing championships", "1999 world wing championships", "1997 world wine championships", "1997 world wind championships", "1997 world wading championships", "1997 world wineg championships", "1997 world windg championships", "1997 world wieg championships"
"1997 world win championships" » "1997 world _ championships", "1997 world iv championship", "1997 world winning championships", "1993 world win championships", "1995 world win championships", "1999 world win championships", "1997 world wine championships", "1997 world wind championships", "1997 world wie 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: (("1992 world treating championships") OR ((("1997 world win championships") OR ("1997 world wing championships")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"1992 world treating championships\") or (((\"1997 world win championships\") OR (\"1997 world wing championships\"))))".
• Removing quotes may allow a broader search: (( 1992 world treating championships ) or ((( 1997 world win championships ) OR ( 1997 world wing championships )))).
• Adding a wildcard symbol may retrieve word variants: (("1992 world treating championships") or ((("1997 world win championships") OR ("1997 world wing championships"))))*.