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

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