Perhaps you should try some spelling variations:
"synchronised stemming" » "synchronism stemming", "synchronising stemming", "synchronised flemming", "synchronised stepping", "synchronised stealing"
"synchronised steering" » "synchronism steering", "synchronising steering"
"synchronize stemming" » "synchronize flemming", "synchronize stepping", "synchronize stealing", "synchronism stemming", "synchronizing stemming"
"synchronized stemming" » "synchronized flemming", "synchronized stepping", "synchronized stealing", "synchronismd stemming", "synchronizingd stemming"
"synchronize streaming" » "synchronism streaming", "synchronizing streaming", "synchronize treating"

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