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