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

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 ("synchronising stemming"))) or ((("synchronised flemming") or ("synchronised fleming"))))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("synchronised swimming") OR ((((("synchronised stemming") OR ("synchronising stemming"))) OR ((("synchronised flemming") OR ("synchronised fleming")))))).
• Removing quotes may allow a broader search: (( synchronised swimming ) or ((((( synchronised stemming ) or ( synchronising stemming ))) or ((( synchronised flemming ) or ( synchronised fleming )))))).
• Adding a wildcard symbol may retrieve word variants: (("synchronised swimming") or ((((("synchronised stemming") or ("synchronising stemming"))) or ((("synchronised flemming") or ("synchronised fleming"))))))*.