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

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("synchronising swimming") or ((("synchronize steering") or ("synchronize flemming"))))) or ("synchronized swimming"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("synchronising swimming") OR ((("synchronize steering") OR ("synchronize flemming"))))) OR ("synchronized swimming")).
• Removing quotes may allow a broader search: (((( synchronising swimming ) or ((( synchronize steering ) or ( synchronize flemming ))))) or ( synchronized swimming )).
• Adding a wildcard symbol may retrieve word variants: (((("synchronising swimming") or ((("synchronize steering") or ("synchronize flemming"))))) or ("synchronized swimming"))*.