Perhaps you should try some spelling variations:
"synchronised swimming" » "synchronized swimming", "synchronism swimming", "synchronising swimming"
"synchronised stemming" » "synchronized stemming", "synchronism stemming", "synchronising stemming", "synchronised streaming", "synchronised steering", "synchronised flemming"
"synchronize swimming" » "synchronized swimming", "synchronism swimming", "synchronizing swimming"
"synchronismd swimming" » "synchronism swimming", "synchronized swimming", "synchronising swimming"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((((("synchronised swimming") OR ("synchronised stemming"))) or ("synchronize swimming"))) or ("synchronismd swimming"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((("synchronised swimming") OR ("synchronised stemming"))) OR ("synchronize swimming"))) OR ("synchronismd swimming"))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"synchronised swimming\") OR (\"synchronised stemming\"))) or (\"synchronize swimming\"))) or (\"synchronismd swimming\"))*".
• Removing quotes may allow a broader search: (((((( synchronised swimming ) OR ( synchronised stemming ))) or ( synchronize swimming ))) or ( synchronismd swimming ))*.