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