Perhaps you should try some spelling variations:
"synchronised swimming" » "synchronism swimming", "synchronising swimming"
"synchronised stemming" » "synchronism stemming", "synchronising stemming", "synchronised streaming", "synchronised steering", "synchronised flemming"
"synchronize swimming" » "synchronism swimming", "synchronizing swimming"
"synchronized swimming" » "synchronismd swimming", "synchronizingd swimming"
"synchronismd swimming" » "synchronism 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 ("synchronize swimming"))) or ((("synchronized swimming") OR ("synchronismd swimming"))))) or ("synchronised stemming"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((("synchronised swimming") OR ("synchronize swimming"))) OR ((("synchronized swimming") OR ("synchronismd swimming"))))) OR ("synchronised stemming")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"synchronised swimming\") or (\"synchronize swimming\"))) or (((\"synchronized swimming\") OR (\"synchronismd swimming\"))))) or (\"synchronised stemming\"))".
• Removing quotes may allow a broader search: (((((( synchronised swimming ) or ( synchronize swimming ))) or ((( synchronized swimming ) OR ( synchronismd swimming ))))) or ( synchronised stemming )).
• Adding a wildcard symbol may retrieve word variants: (((((("synchronised swimming") or ("synchronize swimming"))) or ((("synchronized swimming") OR ("synchronismd swimming"))))) or ("synchronised stemming"))*.