Perhaps you should try some spelling variations:
"synchronised steering" » "synchronized steering", "synchronize steering", "synchronising steering"
"synchronised streaming" » "synchronized streaming", "synchronize streaming", "synchronising streaming", "synchronised treating"
"synchronism stemming" » "synchronize stemming", "synchronising stemming", "synchronized stemming", "synchronism flemming", "synchronism stepping", "synchronism 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 steering") or ("synchronised streaming"))) or ("synchronism stemming"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("synchronised steering") OR ("synchronised streaming"))) OR ("synchronism stemming")).
• Removing quotes may allow a broader search: (((( synchronised steering ) or ( synchronised streaming ))) or ( synchronism stemming )).
• Adding a wildcard symbol may retrieve word variants: (((("synchronised steering") or ("synchronised streaming"))) or ("synchronism stemming"))*.