Perhaps you should try some spelling variations:
"1997 world running championships" » "1997 world trotting championships", "1997 world win championships", "1997 works running championships", "1997 work running championships", "1997 world training championships", "1993 world running championships", "1995 world running championships", "1999 world running championships"
"1992 world running championships" » "1992 world trotting championships", "1992 world win championships", "1992 works running championships", "1992 work running championships", "1992 world training championships", "1993 world running championships"
"1994 world winning championships" » "1994 world win championships", "1994 world trotting championships", "1994 world fighting championship", "1994 world mining championships", "1994 world signing championships", "1994 worth winning championships", "1993 world winning championships", "1995 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: (("1994 world winning championships") OR ((("1997 world running championships") OR ("1992 world running championships")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"1994 world winning championships\") or (((\"1997 world running championships\") OR (\"1992 world running championships\"))))".
• Removing quotes may allow a broader search: (( 1994 world winning championships ) or ((( 1997 world running championships ) OR ( 1992 world running championships )))).
• Adding a wildcard symbol may retrieve word variants: (("1994 world winning championships") or ((("1997 world running championships") OR ("1992 world running championships"))))*.