Perhaps you should try some spelling variations:
"synchronised stemming" » "synchronized stemming", "synchronize stemming", "synchronising stemming", "synchronised streaming", "synchronised flemming", "synchronised stealing"
"synchronised stepping" » "synchronized stepping", "synchronize stepping", "synchronising stepping", "synchronised stopping", "synchronised shopping", "synchronised shipping"
"synchronised steering" » "synchronized steering", "synchronize steering", "synchronising steering"
"synchronism steering" » "synchronize steering", "synchronising steering", "synchronized steering"

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

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