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

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