Perhaps you should try some spelling variations:
"synchronised stemming" » "synchronism stemming", "synchronize stemming", "synchronising stemming", "synchronised streaming", "synchronised flemming", "synchronised stepping"
"synchronised steering" » "synchronism steering", "synchronize steering", "synchronising steering"
"synchronized treating" » "synchronized creating", "synchronized heating", "synchronized relating"

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