Perhaps you should try some spelling variations:
trotting championships » fighting championship
winning championships » win championships, fighting championship, winning relationships
world trotting » world treating, world trusting, world protecting
world winning » world running, world mining, world signing

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 trotting championships ) OR ( 1993 world winning championships )).
• Adding a wildcard symbol may retrieve word variants: (( 1992 world trotting championships ) or ( 1993 world winning championships ))*.